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Finding the Fourth Proportional to 125,318.56, 187,974.71 and 36,572.83

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Solution

The fourth proportional to 125,318.56, 187,974.71 and 36,572.83 is: 54,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,318.56 : 187,974.71 = 36,572.83 : x
  2. Step 2: Convert to fraction form
    125,318.56/187,974.71 = 36,572.83/x
  3. Step 3: Cross multiply
    125,318.56x = 187,974.71 × 36,572.83
  4. Step 4: Simplify right side
    125,318.56x = 6,874,765,990.39
  5. Step 5: Solve for x
    x = 6,874,765,990.39/125,318.56
  6. Step 6: Final answer
    x = 54,858.32

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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.