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Finding the Fourth Proportional to 86,708.76, 119,655.57 and 48,468.38

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Solution

The fourth proportional to 86,708.76, 119,655.57 and 48,468.38 is: 66,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.76 : 119,655.57 = 48,468.38 : x
  2. Step 2: Convert to fraction form
    86,708.76/119,655.57 = 48,468.38/x
  3. Step 3: Cross multiply
    86,708.76x = 119,655.57 × 48,468.38
  4. Step 4: Simplify right side
    86,708.76x = 5,799,511,037.60
  5. Step 5: Solve for x
    x = 5,799,511,037.60/86,708.76
  6. Step 6: Final answer
    x = 66,884.95

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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.