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Finding the Fourth Proportional to 86,194.77, 129,266.90 and 33,591.69

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Solution

The fourth proportional to 86,194.77, 129,266.90 and 33,591.69 is: 50,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,194.77 : 129,266.90 = 33,591.69 : x
  2. Step 2: Convert to fraction form
    86,194.77/129,266.90 = 33,591.69/x
  3. Step 3: Cross multiply
    86,194.77x = 129,266.90 × 33,591.69
  4. Step 4: Simplify right side
    86,194.77x = 4,342,293,464.10
  5. Step 5: Solve for x
    x = 4,342,293,464.10/86,194.77
  6. Step 6: Final answer
    x = 50,377.69

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1.5x scale

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.