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Finding the Fourth Proportional to 92,534.40, 138,866.40 and 59,335.20

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Solution

The fourth proportional to 92,534.40, 138,866.40 and 59,335.20 is: 89,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,534.40 : 138,866.40 = 59,335.20 : x
  2. Step 2: Convert to fraction form
    92,534.40/138,866.40 = 59,335.20/x
  3. Step 3: Cross multiply
    92,534.40x = 138,866.40 × 59,335.20
  4. Step 4: Simplify right side
    92,534.40x = 8,239,665,617.28
  5. Step 5: Solve for x
    x = 8,239,665,617.28/92,534.40
  6. Step 6: Final answer
    x = 89,044.35

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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.