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Finding the Fourth Proportional to 174,722.52, 261,928.60 and 68,081.76

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Solution

The fourth proportional to 174,722.52, 261,928.60 and 68,081.76 is: 102,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,722.52 : 261,928.60 = 68,081.76 : x
  2. Step 2: Convert to fraction form
    174,722.52/261,928.60 = 68,081.76/x
  3. Step 3: Cross multiply
    174,722.52x = 261,928.60 × 68,081.76
  4. Step 4: Simplify right side
    174,722.52x = 17,832,560,082.34
  5. Step 5: Solve for x
    x = 17,832,560,082.34/174,722.52
  6. Step 6: Final answer
    x = 102,062.17

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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.