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Finding the Fourth Proportional to 125,956.89, 188,960.27 and 36,000.45

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Solution

The fourth proportional to 125,956.89, 188,960.27 and 36,000.45 is: 54,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,956.89 : 188,960.27 = 36,000.45 : x
  2. Step 2: Convert to fraction form
    125,956.89/188,960.27 = 36,000.45/x
  3. Step 3: Cross multiply
    125,956.89x = 188,960.27 × 36,000.45
  4. Step 4: Simplify right side
    125,956.89x = 6,802,654,572.12
  5. Step 5: Solve for x
    x = 6,802,654,572.12/125,956.89
  6. Step 6: Final answer
    x = 54,007.80

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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.