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Finding the Fourth Proportional to 125,090.52, 187,687.92 and 50,263.86

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Solution

The fourth proportional to 125,090.52, 187,687.92 and 50,263.86 is: 75,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,090.52 : 187,687.92 = 50,263.86 : x
  2. Step 2: Convert to fraction form
    125,090.52/187,687.92 = 50,263.86/x
  3. Step 3: Cross multiply
    125,090.52x = 187,687.92 × 50,263.86
  4. Step 4: Simplify right side
    125,090.52x = 9,433,919,334.57
  5. Step 5: Solve for x
    x = 9,433,919,334.57/125,090.52
  6. Step 6: Final answer
    x = 75,416.74

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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.