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Finding the Fourth Proportional to 134,378.56, 201,692.44 and 67,865.52

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Solution

The fourth proportional to 134,378.56, 201,692.44 and 67,865.52 is: 101,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,378.56 : 201,692.44 = 67,865.52 : x
  2. Step 2: Convert to fraction form
    134,378.56/201,692.44 = 67,865.52/x
  3. Step 3: Cross multiply
    134,378.56x = 201,692.44 × 67,865.52
  4. Step 4: Simplify right side
    134,378.56x = 13,687,962,320.67
  5. Step 5: Solve for x
    x = 13,687,962,320.67/134,378.56
  6. Step 6: Final answer
    x = 101,861.21

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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.