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Finding the Fourth Proportional to 169,663.20, 254,494.80 and 165,726.60

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Solution

The fourth proportional to 169,663.20, 254,494.80 and 165,726.60 is: 248,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,663.20 : 254,494.80 = 165,726.60 : x
  2. Step 2: Convert to fraction form
    169,663.20/254,494.80 = 165,726.60/x
  3. Step 3: Cross multiply
    169,663.20x = 254,494.80 × 165,726.60
  4. Step 4: Simplify right side
    169,663.20x = 42,176,557,921.68
  5. Step 5: Solve for x
    x = 42,176,557,921.68/169,663.20
  6. Step 6: Final answer
    x = 248,589.90

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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.