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Finding the Fourth Proportional to 66,230.70, 99,346.05 and 62,601.90

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Solution

The fourth proportional to 66,230.70, 99,346.05 and 62,601.90 is: 93,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.70 : 99,346.05 = 62,601.90 : x
  2. Step 2: Convert to fraction form
    66,230.70/99,346.05 = 62,601.90/x
  3. Step 3: Cross multiply
    66,230.70x = 99,346.05 × 62,601.90
  4. Step 4: Simplify right side
    66,230.70x = 6,219,251,487.50
  5. Step 5: Solve for x
    x = 6,219,251,487.50/66,230.70
  6. Step 6: Final answer
    x = 93,902.85

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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.