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Finding the Fourth Proportional to 63,470.47, 87,404.68 and 59,413.74

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Solution

The fourth proportional to 63,470.47, 87,404.68 and 59,413.74 is: 81,818.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,470.47 : 87,404.68 = 59,413.74 : x
  2. Step 2: Convert to fraction form
    63,470.47/87,404.68 = 59,413.74/x
  3. Step 3: Cross multiply
    63,470.47x = 87,404.68 × 59,413.74
  4. Step 4: Simplify right side
    63,470.47x = 5,193,038,932.30
  5. Step 5: Solve for x
    x = 5,193,038,932.30/63,470.47
  6. Step 6: Final answer
    x = 81,818.19

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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.