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Finding the Fourth Proportional to 84,291.95, 116,322.79 and 48,481.04

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Solution

The fourth proportional to 84,291.95, 116,322.79 and 48,481.04 is: 66,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,291.95 : 116,322.79 = 48,481.04 : x
  2. Step 2: Convert to fraction form
    84,291.95/116,322.79 = 48,481.04/x
  3. Step 3: Cross multiply
    84,291.95x = 116,322.79 × 48,481.04
  4. Step 4: Simplify right side
    84,291.95x = 5,639,449,834.90
  5. Step 5: Solve for x
    x = 5,639,449,834.90/84,291.95
  6. Step 6: Final answer
    x = 66,903.78

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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.