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Finding the Fourth Proportional to 86,793.88, 119,773.97 and 49,068.14

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Solution

The fourth proportional to 86,793.88, 119,773.97 and 49,068.14 is: 67,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.88 : 119,773.97 = 49,068.14 : x
  2. Step 2: Convert to fraction form
    86,793.88/119,773.97 = 49,068.14/x
  3. Step 3: Cross multiply
    86,793.88x = 119,773.97 × 49,068.14
  4. Step 4: Simplify right side
    86,793.88x = 5,877,085,928.32
  5. Step 5: Solve for x
    x = 5,877,085,928.32/86,793.88
  6. Step 6: Final answer
    x = 67,713.14

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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.