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Finding the Fourth Proportional to 93,915.88, 140,821.98 and 38,550.76

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Solution

The fourth proportional to 93,915.88, 140,821.98 and 38,550.76 is: 57,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,915.88 : 140,821.98 = 38,550.76 : x
  2. Step 2: Convert to fraction form
    93,915.88/140,821.98 = 38,550.76/x
  3. Step 3: Cross multiply
    93,915.88x = 140,821.98 × 38,550.76
  4. Step 4: Simplify right side
    93,915.88x = 5,428,794,353.70
  5. Step 5: Solve for x
    x = 5,428,794,353.70/93,915.88
  6. Step 6: Final answer
    x = 57,804.86

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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.