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Finding the Fourth Proportional to 424,963.62, 637,514.66 and 125,474.47

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Solution

The fourth proportional to 424,963.62, 637,514.66 and 125,474.47 is: 188,232.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,963.62 : 637,514.66 = 125,474.47 : x
  2. Step 2: Convert to fraction form
    424,963.62/637,514.66 = 125,474.47/x
  3. Step 3: Cross multiply
    424,963.62x = 637,514.66 × 125,474.47
  4. Step 4: Simplify right side
    424,963.62x = 79,991,812,800.63
  5. Step 5: Solve for x
    x = 79,991,812,800.63/424,963.62
  6. Step 6: Final answer
    x = 188,232.14

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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.