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Finding the Fourth Proportional to 169,687.60, 254,531.40 and 159,319.60

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Solution

The fourth proportional to 169,687.60, 254,531.40 and 159,319.60 is: 238,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,687.60 : 254,531.40 = 159,319.60 : x
  2. Step 2: Convert to fraction form
    169,687.60/254,531.40 = 159,319.60/x
  3. Step 3: Cross multiply
    169,687.60x = 254,531.40 × 159,319.60
  4. Step 4: Simplify right side
    169,687.60x = 40,551,840,835.44
  5. Step 5: Solve for x
    x = 40,551,840,835.44/169,687.60
  6. Step 6: Final answer
    x = 238,979.40

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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.