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Finding the Fourth Proportional to 136,652.72, 204,979.10 and 73,385.81

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Solution

The fourth proportional to 136,652.72, 204,979.10 and 73,385.81 is: 110,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,652.72 : 204,979.10 = 73,385.81 : x
  2. Step 2: Convert to fraction form
    136,652.72/204,979.10 = 73,385.81/x
  3. Step 3: Cross multiply
    136,652.72x = 204,979.10 × 73,385.81
  4. Step 4: Simplify right side
    136,652.72x = 15,042,555,894.75
  5. Step 5: Solve for x
    x = 15,042,555,894.75/136,652.72
  6. Step 6: Final answer
    x = 110,078.72

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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.