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Finding the Fourth Proportional to 86,250.96, 129,375.72 and 33,697.08

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Solution

The fourth proportional to 86,250.96, 129,375.72 and 33,697.08 is: 50,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,250.96 : 129,375.72 = 33,697.08 : x
  2. Step 2: Convert to fraction form
    86,250.96/129,375.72 = 33,697.08/x
  3. Step 3: Cross multiply
    86,250.96x = 129,375.72 × 33,697.08
  4. Step 4: Simplify right side
    86,250.96x = 4,359,583,986.90
  5. Step 5: Solve for x
    x = 4,359,583,986.90/86,250.96
  6. Step 6: Final answer
    x = 50,545.34

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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.