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Finding the Fourth Proportional to 172,605.60, 258,933.92 and 88,413.39

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Solution

The fourth proportional to 172,605.60, 258,933.92 and 88,413.39 is: 132,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,605.60 : 258,933.92 = 88,413.39 : x
  2. Step 2: Convert to fraction form
    172,605.60/258,933.92 = 88,413.39/x
  3. Step 3: Cross multiply
    172,605.60x = 258,933.92 × 88,413.39
  4. Step 4: Simplify right side
    172,605.60x = 22,893,225,211.12
  5. Step 5: Solve for x
    x = 22,893,225,211.12/172,605.60
  6. Step 6: Final answer
    x = 132,633.15

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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.