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Finding the Fourth Proportional to 124,978.79, 187,531.07 and 50,152.41

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Solution

The fourth proportional to 124,978.79, 187,531.07 and 50,152.41 is: 75,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,978.79 : 187,531.07 = 50,152.41 : x
  2. Step 2: Convert to fraction form
    124,978.79/187,531.07 = 50,152.41/x
  3. Step 3: Cross multiply
    124,978.79x = 187,531.07 × 50,152.41
  4. Step 4: Simplify right side
    124,978.79x = 9,405,134,859.62
  5. Step 5: Solve for x
    x = 9,405,134,859.62/124,978.79
  6. Step 6: Final answer
    x = 75,253.85

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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.