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Finding the Fourth Proportional to 91,413.60, 137,134.08 and 29,098.08

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Solution

The fourth proportional to 91,413.60, 137,134.08 and 29,098.08 is: 43,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,413.60 : 137,134.08 = 29,098.08 : x
  2. Step 2: Convert to fraction form
    91,413.60/137,134.08 = 29,098.08/x
  3. Step 3: Cross multiply
    91,413.60x = 137,134.08 × 29,098.08
  4. Step 4: Simplify right side
    91,413.60x = 3,990,338,430.57
  5. Step 5: Solve for x
    x = 3,990,338,430.57/91,413.60
  6. Step 6: Final answer
    x = 43,651.47

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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.