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Finding the Fourth Proportional to 79,207.16, 118,996.53 and 74,723.72

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Solution

The fourth proportional to 79,207.16, 118,996.53 and 74,723.72 is: 112,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.16 : 118,996.53 = 74,723.72 : x
  2. Step 2: Convert to fraction form
    79,207.16/118,996.53 = 74,723.72/x
  3. Step 3: Cross multiply
    79,207.16x = 118,996.53 × 74,723.72
  4. Step 4: Simplify right side
    79,207.16x = 8,891,863,388.69
  5. Step 5: Solve for x
    x = 8,891,863,388.69/79,207.16
  6. Step 6: Final answer
    x = 112,260.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.