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Finding the Fourth Proportional to 71,155.11, 98,194.17 and 39,324

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Solution

The fourth proportional to 71,155.11, 98,194.17 and 39,324 is: 54,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,155.11 : 98,194.17 = 39,324 : x
  2. Step 2: Convert to fraction form
    71,155.11/98,194.17 = 39,324/x
  3. Step 3: Cross multiply
    71,155.11x = 98,194.17 × 39,324
  4. Step 4: Simplify right side
    71,155.11x = 3,861,387,541.08
  5. Step 5: Solve for x
    x = 3,861,387,541.08/71,155.11
  6. Step 6: Final answer
    x = 54,267.19

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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.