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Finding the Fourth Proportional to 79,891.68, 110,348.64 and 59,838.15

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Solution

The fourth proportional to 79,891.68, 110,348.64 and 59,838.15 is: 82,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,891.68 : 110,348.64 = 59,838.15 : x
  2. Step 2: Convert to fraction form
    79,891.68/110,348.64 = 59,838.15/x
  3. Step 3: Cross multiply
    79,891.68x = 110,348.64 × 59,838.15
  4. Step 4: Simplify right side
    79,891.68x = 6,603,058,472.62
  5. Step 5: Solve for x
    x = 6,603,058,472.62/79,891.68
  6. Step 6: Final answer
    x = 82,650.14

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1.5x scale

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.