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Finding the Fourth Proportional to 424,269.51, 636,404.04 and 124,752.57

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Solution

The fourth proportional to 424,269.51, 636,404.04 and 124,752.57 is: 187,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,269.51 : 636,404.04 = 124,752.57 : x
  2. Step 2: Convert to fraction form
    424,269.51/636,404.04 = 124,752.57/x
  3. Step 3: Cross multiply
    424,269.51x = 636,404.04 × 124,752.57
  4. Step 4: Simplify right side
    424,269.51x = 79,393,039,548.38
  5. Step 5: Solve for x
    x = 79,393,039,548.38/424,269.51
  6. Step 6: Final answer
    x = 187,128.79

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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.