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Finding the Fourth Proportional to 75,117.62, 112,787.13 and 41,902.58

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Solution

The fourth proportional to 75,117.62, 112,787.13 and 41,902.58 is: 62,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,117.62 : 112,787.13 = 41,902.58 : x
  2. Step 2: Convert to fraction form
    75,117.62/112,787.13 = 41,902.58/x
  3. Step 3: Cross multiply
    75,117.62x = 112,787.13 × 41,902.58
  4. Step 4: Simplify right side
    75,117.62x = 4,726,071,737.80
  5. Step 5: Solve for x
    x = 4,726,071,737.80/75,117.62
  6. Step 6: Final answer
    x = 62,915.62

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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.