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Finding the Fourth Proportional to 86,624.46, 129,950.28 and 36,704.88

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Solution

The fourth proportional to 86,624.46, 129,950.28 and 36,704.88 is: 55,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,624.46 : 129,950.28 = 36,704.88 : x
  2. Step 2: Convert to fraction form
    86,624.46/129,950.28 = 36,704.88/x
  3. Step 3: Cross multiply
    86,624.46x = 129,950.28 × 36,704.88
  4. Step 4: Simplify right side
    86,624.46x = 4,769,809,433.37
  5. Step 5: Solve for x
    x = 4,769,809,433.37/86,624.46
  6. Step 6: Final answer
    x = 55,063.08

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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.