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Finding the Fourth Proportional to 125,165.88, 187,749.17 and 36,421.52

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Solution

The fourth proportional to 125,165.88, 187,749.17 and 36,421.52 is: 54,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.88 : 187,749.17 = 36,421.52 : x
  2. Step 2: Convert to fraction form
    125,165.88/187,749.17 = 36,421.52/x
  3. Step 3: Cross multiply
    125,165.88x = 187,749.17 × 36,421.52
  4. Step 4: Simplify right side
    125,165.88x = 6,838,110,647.56
  5. Step 5: Solve for x
    x = 6,838,110,647.56/125,165.88
  6. Step 6: Final answer
    x = 54,632.38

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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.