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Finding the Fourth Proportional to 66,494.20, 99,814.20 and 41,562.40

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Solution

The fourth proportional to 66,494.20, 99,814.20 and 41,562.40 is: 62,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.20 : 99,814.20 = 41,562.40 : x
  2. Step 2: Convert to fraction form
    66,494.20/99,814.20 = 41,562.40/x
  3. Step 3: Cross multiply
    66,494.20x = 99,814.20 × 41,562.40
  4. Step 4: Simplify right side
    66,494.20x = 4,148,517,706.08
  5. Step 5: Solve for x
    x = 4,148,517,706.08/66,494.20
  6. Step 6: Final answer
    x = 62,389.17

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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.