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Finding the Fourth Proportional to 169,436.60, 254,068.10 and 89,517.47

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Solution

The fourth proportional to 169,436.60, 254,068.10 and 89,517.47 is: 134,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,436.60 : 254,068.10 = 89,517.47 : x
  2. Step 2: Convert to fraction form
    169,436.60/254,068.10 = 89,517.47/x
  3. Step 3: Cross multiply
    169,436.60x = 254,068.10 × 89,517.47
  4. Step 4: Simplify right side
    169,436.60x = 22,743,531,801.78
  5. Step 5: Solve for x
    x = 22,743,531,801.78/169,436.60
  6. Step 6: Final answer
    x = 134,230.34

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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.