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Finding the Fourth Proportional to 63,981.99, 88,319.52 and 48,112.56

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Solution

The fourth proportional to 63,981.99, 88,319.52 and 48,112.56 is: 66,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,981.99 : 88,319.52 = 48,112.56 : x
  2. Step 2: Convert to fraction form
    63,981.99/88,319.52 = 48,112.56/x
  3. Step 3: Cross multiply
    63,981.99x = 88,319.52 × 48,112.56
  4. Step 4: Simplify right side
    63,981.99x = 4,249,278,205.17
  5. Step 5: Solve for x
    x = 4,249,278,205.17/63,981.99
  6. Step 6: Final answer
    x = 66,413.66

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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.