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Finding the Fourth Proportional to 442,293.96, 663,463.62 and 126,753.60

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Solution

The fourth proportional to 442,293.96, 663,463.62 and 126,753.60 is: 190,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,293.96 : 663,463.62 = 126,753.60 : x
  2. Step 2: Convert to fraction form
    442,293.96/663,463.62 = 126,753.60/x
  3. Step 3: Cross multiply
    442,293.96x = 663,463.62 × 126,753.60
  4. Step 4: Simplify right side
    442,293.96x = 84,096,402,304.03
  5. Step 5: Solve for x
    x = 84,096,402,304.03/442,293.96
  6. Step 6: Final answer
    x = 190,136.90

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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.