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Finding the Fourth Proportional to 71,092.92, 98,108.91 and 39,261.14

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Solution

The fourth proportional to 71,092.92, 98,108.91 and 39,261.14 is: 54,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,092.92 : 98,108.91 = 39,261.14 : x
  2. Step 2: Convert to fraction form
    71,092.92/98,108.91 = 39,261.14/x
  3. Step 3: Cross multiply
    71,092.92x = 98,108.91 × 39,261.14
  4. Step 4: Simplify right side
    71,092.92x = 3,851,867,160.21
  5. Step 5: Solve for x
    x = 3,851,867,160.21/71,092.92
  6. Step 6: Final answer
    x = 54,180.74

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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.