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Finding the Fourth Proportional to 169,443.56, 253,764.56 and 147,135.70

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Solution

The fourth proportional to 169,443.56, 253,764.56 and 147,135.70 is: 220,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,443.56 : 253,764.56 = 147,135.70 : x
  2. Step 2: Convert to fraction form
    169,443.56/253,764.56 = 147,135.70/x
  3. Step 3: Cross multiply
    169,443.56x = 253,764.56 × 147,135.70
  4. Step 4: Simplify right side
    169,443.56x = 37,337,826,170.79
  5. Step 5: Solve for x
    x = 37,337,826,170.79/169,443.56
  6. Step 6: Final answer
    x = 220,355.53

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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.