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Finding the Fourth Proportional to 132,942.60, 199,413.90 and 88,705.80

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Solution

The fourth proportional to 132,942.60, 199,413.90 and 88,705.80 is: 133,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,942.60 : 199,413.90 = 88,705.80 : x
  2. Step 2: Convert to fraction form
    132,942.60/199,413.90 = 88,705.80/x
  3. Step 3: Cross multiply
    132,942.60x = 199,413.90 × 88,705.80
  4. Step 4: Simplify right side
    132,942.60x = 17,689,169,530.62
  5. Step 5: Solve for x
    x = 17,689,169,530.62/132,942.60
  6. Step 6: Final answer
    x = 133,058.70

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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.