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Finding the Fourth Proportional to 163,020.80, 244,531.20 and 74,447.30

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Solution

The fourth proportional to 163,020.80, 244,531.20 and 74,447.30 is: 111,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,020.80 : 244,531.20 = 74,447.30 : x
  2. Step 2: Convert to fraction form
    163,020.80/244,531.20 = 74,447.30/x
  3. Step 3: Cross multiply
    163,020.80x = 244,531.20 × 74,447.30
  4. Step 4: Simplify right side
    163,020.80x = 18,204,687,605.76
  5. Step 5: Solve for x
    x = 18,204,687,605.76/163,020.80
  6. Step 6: Final answer
    x = 111,670.95

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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.