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Finding the Fourth Proportional to 169,442.56, 253,763.06 and 147,134.70

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Solution

The fourth proportional to 169,442.56, 253,763.06 and 147,134.70 is: 220,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,442.56 : 253,763.06 = 147,134.70 : x
  2. Step 2: Convert to fraction form
    169,442.56/253,763.06 = 147,134.70/x
  3. Step 3: Cross multiply
    169,442.56x = 253,763.06 × 147,134.70
  4. Step 4: Simplify right side
    169,442.56x = 37,337,351,704.18
  5. Step 5: Solve for x
    x = 37,337,351,704.18/169,442.56
  6. Step 6: Final answer
    x = 220,354.03

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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.