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Finding the Fourth Proportional to 117,740.98, 162,486.83 and 67,449.70

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Solution

The fourth proportional to 117,740.98, 162,486.83 and 67,449.70 is: 93,083.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.98 : 162,486.83 = 67,449.70 : x
  2. Step 2: Convert to fraction form
    117,740.98/162,486.83 = 67,449.70/x
  3. Step 3: Cross multiply
    117,740.98x = 162,486.83 × 67,449.70
  4. Step 4: Simplify right side
    117,740.98x = 10,959,687,843.56
  5. Step 5: Solve for x
    x = 10,959,687,843.56/117,740.98
  6. Step 6: Final answer
    x = 93,083.04

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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.