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Finding the Fourth Proportional to 121,264.50, 167,345.01 and 70,963.50

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Solution

The fourth proportional to 121,264.50, 167,345.01 and 70,963.50 is: 97,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264.50 : 167,345.01 = 70,963.50 : x
  2. Step 2: Convert to fraction form
    121,264.50/167,345.01 = 70,963.50/x
  3. Step 3: Cross multiply
    121,264.50x = 167,345.01 × 70,963.50
  4. Step 4: Simplify right side
    121,264.50x = 11,875,387,617.14
  5. Step 5: Solve for x
    x = 11,875,387,617.14/121,264.50
  6. Step 6: Final answer
    x = 97,929.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.