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Finding the Fourth Proportional to 86,444.70, 129,684.52 and 36,524.94

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Solution

The fourth proportional to 86,444.70, 129,684.52 and 36,524.94 is: 54,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,444.70 : 129,684.52 = 36,524.94 : x
  2. Step 2: Convert to fraction form
    86,444.70/129,684.52 = 36,524.94/x
  3. Step 3: Cross multiply
    86,444.70x = 129,684.52 × 36,524.94
  4. Step 4: Simplify right side
    86,444.70x = 4,736,719,311.93
  5. Step 5: Solve for x
    x = 4,736,719,311.93/86,444.70
  6. Step 6: Final answer
    x = 54,794.79

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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.