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Finding the Fourth Proportional to 169,781.02, 254,474.68 and 159,939.52

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Solution

The fourth proportional to 169,781.02, 254,474.68 and 159,939.52 is: 239,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,781.02 : 254,474.68 = 159,939.52 : x
  2. Step 2: Convert to fraction form
    169,781.02/254,474.68 = 159,939.52/x
  3. Step 3: Cross multiply
    169,781.02x = 254,474.68 × 159,939.52
  4. Step 4: Simplify right side
    169,781.02x = 40,700,558,171.35
  5. Step 5: Solve for x
    x = 40,700,558,171.35/169,781.02
  6. Step 6: Final answer
    x = 239,723.84

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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.