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Finding the Fourth Proportional to 93,545.60, 140,318.40 and 83,631.20

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Solution

The fourth proportional to 93,545.60, 140,318.40 and 83,631.20 is: 125,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,545.60 : 140,318.40 = 83,631.20 : x
  2. Step 2: Convert to fraction form
    93,545.60/140,318.40 = 83,631.20/x
  3. Step 3: Cross multiply
    93,545.60x = 140,318.40 × 83,631.20
  4. Step 4: Simplify right side
    93,545.60x = 11,734,996,174.08
  5. Step 5: Solve for x
    x = 11,734,996,174.08/93,545.60
  6. Step 6: Final answer
    x = 125,446.80

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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.