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Finding the Fourth Proportional to 135,251.60, 202,877.40 and 105,760.40

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Solution

The fourth proportional to 135,251.60, 202,877.40 and 105,760.40 is: 158,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,251.60 : 202,877.40 = 105,760.40 : x
  2. Step 2: Convert to fraction form
    135,251.60/202,877.40 = 105,760.40/x
  3. Step 3: Cross multiply
    135,251.60x = 202,877.40 × 105,760.40
  4. Step 4: Simplify right side
    135,251.60x = 21,456,394,974.96
  5. Step 5: Solve for x
    x = 21,456,394,974.96/135,251.60
  6. Step 6: Final answer
    x = 158,640.60

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1.5x scale

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.