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Finding the Fourth Proportional to 424,294.68, 636,352.47 and 124,693.95

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Solution

The fourth proportional to 424,294.68, 636,352.47 and 124,693.95 is: 187,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,294.68 : 636,352.47 = 124,693.95 : x
  2. Step 2: Convert to fraction form
    424,294.68/636,352.47 = 124,693.95/x
  3. Step 3: Cross multiply
    424,294.68x = 636,352.47 × 124,693.95
  4. Step 4: Simplify right side
    424,294.68x = 79,349,303,076.56
  5. Step 5: Solve for x
    x = 79,349,303,076.56/424,294.68
  6. Step 6: Final answer
    x = 187,014.61

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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.