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Finding the Fourth Proportional to 136,499.20, 204,748.80 and 101,069.80

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Solution

The fourth proportional to 136,499.20, 204,748.80 and 101,069.80 is: 151,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,499.20 : 204,748.80 = 101,069.80 : x
  2. Step 2: Convert to fraction form
    136,499.20/204,748.80 = 101,069.80/x
  3. Step 3: Cross multiply
    136,499.20x = 204,748.80 × 101,069.80
  4. Step 4: Simplify right side
    136,499.20x = 20,693,920,266.24
  5. Step 5: Solve for x
    x = 20,693,920,266.24/136,499.20
  6. Step 6: Final answer
    x = 151,604.70

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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.