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Finding the Fourth Proportional to 424,449.08, 636,604.43 and 124,859.60

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Solution

The fourth proportional to 424,449.08, 636,604.43 and 124,859.60 is: 187,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,449.08 : 636,604.43 = 124,859.60 : x
  2. Step 2: Convert to fraction form
    424,449.08/636,604.43 = 124,859.60/x
  3. Step 3: Cross multiply
    424,449.08x = 636,604.43 × 124,859.60
  4. Step 4: Simplify right side
    424,449.08x = 79,486,170,680.71
  5. Step 5: Solve for x
    x = 79,486,170,680.71/424,449.08
  6. Step 6: Final answer
    x = 187,269.04

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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.