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Finding the Fourth Proportional to 93,812.40, 140,747.40 and 74,098.80

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Solution

The fourth proportional to 93,812.40, 140,747.40 and 74,098.80 is: 111,170.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,812.40 : 140,747.40 = 74,098.80 : x
  2. Step 2: Convert to fraction form
    93,812.40/140,747.40 = 74,098.80/x
  3. Step 3: Cross multiply
    93,812.40x = 140,747.40 × 74,098.80
  4. Step 4: Simplify right side
    93,812.40x = 10,429,213,443.12
  5. Step 5: Solve for x
    x = 10,429,213,443.12/93,812.40
  6. Step 6: Final answer
    x = 111,170.95

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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.