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Finding the Fourth Proportional to 59,723.80, 89,585.70 and 51,413.20

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Solution

The fourth proportional to 59,723.80, 89,585.70 and 51,413.20 is: 77,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,723.80 : 89,585.70 = 51,413.20 : x
  2. Step 2: Convert to fraction form
    59,723.80/89,585.70 = 51,413.20/x
  3. Step 3: Cross multiply
    59,723.80x = 89,585.70 × 51,413.20
  4. Step 4: Simplify right side
    59,723.80x = 4,605,887,511.24
  5. Step 5: Solve for x
    x = 4,605,887,511.24/59,723.80
  6. Step 6: Final answer
    x = 77,119.80

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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.