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Finding the Fourth Proportional to 424,965.62, 637,517.66 and 125,476.47

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Solution

The fourth proportional to 424,965.62, 637,517.66 and 125,476.47 is: 188,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,965.62 : 637,517.66 = 125,476.47 : x
  2. Step 2: Convert to fraction form
    424,965.62/637,517.66 = 125,476.47/x
  3. Step 3: Cross multiply
    424,965.62x = 637,517.66 × 125,476.47
  4. Step 4: Simplify right side
    424,965.62x = 79,993,465,539.46
  5. Step 5: Solve for x
    x = 79,993,465,539.46/424,965.62
  6. Step 6: Final answer
    x = 188,235.15

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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.