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Finding the Fourth Proportional to 63,413.71, 87,251.65 and 54,888.66

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Solution

The fourth proportional to 63,413.71, 87,251.65 and 54,888.66 is: 75,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,413.71 : 87,251.65 = 54,888.66 : x
  2. Step 2: Convert to fraction form
    63,413.71/87,251.65 = 54,888.66/x
  3. Step 3: Cross multiply
    63,413.71x = 87,251.65 × 54,888.66
  4. Step 4: Simplify right side
    63,413.71x = 4,789,125,876.85
  5. Step 5: Solve for x
    x = 4,789,125,876.85/63,413.71
  6. Step 6: Final answer
    x = 75,521.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.