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Finding the Fourth Proportional to 424,924.57, 637,489.80 and 125,398.52

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Solution

The fourth proportional to 424,924.57, 637,489.80 and 125,398.52 is: 188,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,924.57 : 637,489.80 = 125,398.52 : x
  2. Step 2: Convert to fraction form
    424,924.57/637,489.80 = 125,398.52/x
  3. Step 3: Cross multiply
    424,924.57x = 637,489.80 × 125,398.52
  4. Step 4: Simplify right side
    424,924.57x = 79,940,274,247.65
  5. Step 5: Solve for x
    x = 79,940,274,247.65/424,924.57
  6. Step 6: Final answer
    x = 188,128.15

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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.