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Finding the Fourth Proportional to 92,568.54, 138,915.18 and 39,983.34

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Solution

The fourth proportional to 92,568.54, 138,915.18 and 39,983.34 is: 60,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,568.54 : 138,915.18 = 39,983.34 : x
  2. Step 2: Convert to fraction form
    92,568.54/138,915.18 = 39,983.34/x
  3. Step 3: Cross multiply
    92,568.54x = 138,915.18 × 39,983.34
  4. Step 4: Simplify right side
    92,568.54x = 5,554,292,873.10
  5. Step 5: Solve for x
    x = 5,554,292,873.10/92,568.54
  6. Step 6: Final answer
    x = 60,001.95

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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.