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Finding the Fourth Proportional to 52,868.34, 79,217.46 and 36,171.90

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Solution

The fourth proportional to 52,868.34, 79,217.46 and 36,171.90 is: 54,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,868.34 : 79,217.46 = 36,171.90 : x
  2. Step 2: Convert to fraction form
    52,868.34/79,217.46 = 36,171.90/x
  3. Step 3: Cross multiply
    52,868.34x = 79,217.46 × 36,171.90
  4. Step 4: Simplify right side
    52,868.34x = 2,865,446,041.37
  5. Step 5: Solve for x
    x = 2,865,446,041.37/52,868.34
  6. Step 6: Final answer
    x = 54,199.66

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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.