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Finding the Fourth Proportional to 59,413.80, 89,139.90 and 39,714.60

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Solution

The fourth proportional to 59,413.80, 89,139.90 and 39,714.60 is: 59,584.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,413.80 : 89,139.90 = 39,714.60 : x
  2. Step 2: Convert to fraction form
    59,413.80/89,139.90 = 39,714.60/x
  3. Step 3: Cross multiply
    59,413.80x = 89,139.90 × 39,714.60
  4. Step 4: Simplify right side
    59,413.80x = 3,540,155,472.54
  5. Step 5: Solve for x
    x = 3,540,155,472.54/59,413.80
  6. Step 6: Final answer
    x = 59,584.73

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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.