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Finding the Fourth Proportional to 160,617.40, 240,726.18 and 103,540.80

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Solution

The fourth proportional to 160,617.40, 240,726.18 and 103,540.80 is: 155,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,617.40 : 240,726.18 = 103,540.80 : x
  2. Step 2: Convert to fraction form
    160,617.40/240,726.18 = 103,540.80/x
  3. Step 3: Cross multiply
    160,617.40x = 240,726.18 × 103,540.80
  4. Step 4: Simplify right side
    160,617.40x = 24,924,981,775.64
  5. Step 5: Solve for x
    x = 24,924,981,775.64/160,617.40
  6. Step 6: Final answer
    x = 155,182.33

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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.