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Finding the Fourth Proportional to 116,251.79, 160,408.35 and 68,498.65

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Solution

The fourth proportional to 116,251.79, 160,408.35 and 68,498.65 is: 94,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,251.79 : 160,408.35 = 68,498.65 : x
  2. Step 2: Convert to fraction form
    116,251.79/160,408.35 = 68,498.65/x
  3. Step 3: Cross multiply
    116,251.79x = 160,408.35 × 68,498.65
  4. Step 4: Simplify right side
    116,251.79x = 10,987,754,621.69
  5. Step 5: Solve for x
    x = 10,987,754,621.69/116,251.79
  6. Step 6: Final answer
    x = 94,516.86

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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.