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Finding the Fourth Proportional to 424,011.17, 636,013.52 and 108,467.57

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Solution

The fourth proportional to 424,011.17, 636,013.52 and 108,467.57 is: 162,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,011.17 : 636,013.52 = 108,467.57 : x
  2. Step 2: Convert to fraction form
    424,011.17/636,013.52 = 108,467.57/x
  3. Step 3: Cross multiply
    424,011.17x = 636,013.52 × 108,467.57
  4. Step 4: Simplify right side
    424,011.17x = 68,986,840,459.21
  5. Step 5: Solve for x
    x = 68,986,840,459.21/424,011.17
  6. Step 6: Final answer
    x = 162,700.53

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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.