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Finding the Fourth Proportional to 83,149.60, 124,724.40 and 62,413.60

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Solution

The fourth proportional to 83,149.60, 124,724.40 and 62,413.60 is: 93,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,149.60 : 124,724.40 = 62,413.60 : x
  2. Step 2: Convert to fraction form
    83,149.60/124,724.40 = 62,413.60/x
  3. Step 3: Cross multiply
    83,149.60x = 124,724.40 × 62,413.60
  4. Step 4: Simplify right side
    83,149.60x = 7,784,498,811.84
  5. Step 5: Solve for x
    x = 7,784,498,811.84/83,149.60
  6. Step 6: Final answer
    x = 93,620.40

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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.