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Finding the Fourth Proportional to 424,295.43, 636,353.60 and 124,694.70

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Solution

The fourth proportional to 424,295.43, 636,353.60 and 124,694.70 is: 187,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,295.43 : 636,353.60 = 124,694.70 : x
  2. Step 2: Convert to fraction form
    424,295.43/636,353.60 = 124,694.70/x
  3. Step 3: Cross multiply
    424,295.43x = 636,353.60 × 124,694.70
  4. Step 4: Simplify right side
    424,295.43x = 79,349,920,622.45
  5. Step 5: Solve for x
    x = 79,349,920,622.45/424,295.43
  6. Step 6: Final answer
    x = 187,015.73

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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.