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Finding the Fourth Proportional to 84,866.42, 117,102.65 and 49,049.52

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Solution

The fourth proportional to 84,866.42, 117,102.65 and 49,049.52 is: 67,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,866.42 : 117,102.65 = 49,049.52 : x
  2. Step 2: Convert to fraction form
    84,866.42/117,102.65 = 49,049.52/x
  3. Step 3: Cross multiply
    84,866.42x = 117,102.65 × 49,049.52
  4. Step 4: Simplify right side
    84,866.42x = 5,743,828,527.98
  5. Step 5: Solve for x
    x = 5,743,828,527.98/84,866.42
  6. Step 6: Final answer
    x = 67,680.82

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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.