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Finding the Fourth Proportional to 136,572.50, 204,917.85 and 73,318.82

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Solution

The fourth proportional to 136,572.50, 204,917.85 and 73,318.82 is: 110,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,572.50 : 204,917.85 = 73,318.82 : x
  2. Step 2: Convert to fraction form
    136,572.50/204,917.85 = 73,318.82/x
  3. Step 3: Cross multiply
    136,572.50x = 204,917.85 × 73,318.82
  4. Step 4: Simplify right side
    136,572.50x = 15,024,335,087.01
  5. Step 5: Solve for x
    x = 15,024,335,087.01/136,572.50
  6. Step 6: Final answer
    x = 110,009.96

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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.