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Finding the Fourth Proportional to 121,479,313.40, 182,218,970.10 and 121,479,313.40

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Solution

The fourth proportional to 121,479,313.40, 182,218,970.10 and 121,479,313.40 is: 182,218,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479,313.40 : 182,218,970.10 = 121,479,313.40 : x
  2. Step 2: Convert to fraction form
    121,479,313.40/182,218,970.10 = 121,479,313.40/x
  3. Step 3: Cross multiply
    121,479,313.40x = 182,218,970.10 × 121,479,313.40
  4. Step 4: Simplify right side
    121,479,313.40x = 22,135,835,376,203,128
  5. Step 5: Solve for x
    x = 22,135,835,376,203,128/121,479,313.40
  6. Step 6: Final answer
    x = 182,218,970.10

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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.