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Finding the Fourth Proportional to 42,136.16, 63,158.88 and 22,394.88

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Solution

The fourth proportional to 42,136.16, 63,158.88 and 22,394.88 is: 33,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,136.16 : 63,158.88 = 22,394.88 : x
  2. Step 2: Convert to fraction form
    42,136.16/63,158.88 = 22,394.88/x
  3. Step 3: Cross multiply
    42,136.16x = 63,158.88 × 22,394.88
  4. Step 4: Simplify right side
    42,136.16x = 1,414,435,538.53
  5. Step 5: Solve for x
    x = 1,414,435,538.53/42,136.16
  6. Step 6: Final answer
    x = 33,568.21

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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.