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Finding the Fourth Proportional to 157,436.60, 236,154.90 and 132,942.20

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Solution

The fourth proportional to 157,436.60, 236,154.90 and 132,942.20 is: 199,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,436.60 : 236,154.90 = 132,942.20 : x
  2. Step 2: Convert to fraction form
    157,436.60/236,154.90 = 132,942.20/x
  3. Step 3: Cross multiply
    157,436.60x = 236,154.90 × 132,942.20
  4. Step 4: Simplify right side
    157,436.60x = 31,394,951,946.78
  5. Step 5: Solve for x
    x = 31,394,951,946.78/157,436.60
  6. Step 6: Final answer
    x = 199,413.30

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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.