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Finding the Fourth Proportional to 424,542.33, 636,829.29 and 125,022.96

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Solution

The fourth proportional to 424,542.33, 636,829.29 and 125,022.96 is: 187,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,542.33 : 636,829.29 = 125,022.96 : x
  2. Step 2: Convert to fraction form
    424,542.33/636,829.29 = 125,022.96/x
  3. Step 3: Cross multiply
    424,542.33x = 636,829.29 × 125,022.96
  4. Step 4: Simplify right side
    424,542.33x = 79,618,282,850.50
  5. Step 5: Solve for x
    x = 79,618,282,850.50/424,542.33
  6. Step 6: Final answer
    x = 187,539.09

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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.