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Finding the Fourth Proportional to 86,598.96, 129,912.03 and 36,679.34

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Solution

The fourth proportional to 86,598.96, 129,912.03 and 36,679.34 is: 55,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,598.96 : 129,912.03 = 36,679.34 : x
  2. Step 2: Convert to fraction form
    86,598.96/129,912.03 = 36,679.34/x
  3. Step 3: Cross multiply
    86,598.96x = 129,912.03 × 36,679.34
  4. Step 4: Simplify right side
    86,598.96x = 4,765,086,868.90
  5. Step 5: Solve for x
    x = 4,765,086,868.90/86,598.96
  6. Step 6: Final answer
    x = 55,024.76

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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.