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Finding the Fourth Proportional to 79,165.77, 118,747.88 and 34,218.92

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Solution

The fourth proportional to 79,165.77, 118,747.88 and 34,218.92 is: 51,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,165.77 : 118,747.88 = 34,218.92 : x
  2. Step 2: Convert to fraction form
    79,165.77/118,747.88 = 34,218.92/x
  3. Step 3: Cross multiply
    79,165.77x = 118,747.88 × 34,218.92
  4. Step 4: Simplify right side
    79,165.77x = 4,063,423,441.06
  5. Step 5: Solve for x
    x = 4,063,423,441.06/79,165.77
  6. Step 6: Final answer
    x = 51,328.04

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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.