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Finding the Fourth Proportional to 121,277,892,003.15, 181,916,838,004.72 and 121,277,892,003.15

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Solution

The fourth proportional to 121,277,892,003.15, 181,916,838,004.72 and 121,277,892,003.15 is: 181,916,838,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277,892,003.15 : 181,916,838,004.72 = 121,277,892,003.15 : x
  2. Step 2: Convert to fraction form
    121,277,892,003.15/181,916,838,004.72 = 121,277,892,003.15/x
  3. Step 3: Cross multiply
    121,277,892,003.15x = 181,916,838,004.72 × 121,277,892,003.15
  4. Step 4: Simplify right side
    121,277,892,003.15x = 22,062,490,633,090,965,176,320
  5. Step 5: Solve for x
    x = 22,062,490,633,090,965,176,320/121,277,892,003.15
  6. Step 6: Final answer
    x = 181,916,838,004.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.