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Finding the Fourth Proportional to 424,264.56, 636,396.54 and 124,747.62

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Solution

The fourth proportional to 424,264.56, 636,396.54 and 124,747.62 is: 187,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,264.56 : 636,396.54 = 124,747.62 : x
  2. Step 2: Convert to fraction form
    424,264.56/636,396.54 = 124,747.62/x
  3. Step 3: Cross multiply
    424,264.56x = 636,396.54 × 124,747.62
  4. Step 4: Simplify right side
    424,264.56x = 79,388,953,741.23
  5. Step 5: Solve for x
    x = 79,388,953,741.23/424,264.56
  6. Step 6: Final answer
    x = 187,121.34

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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.