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Finding the Fourth Proportional to 144,846.72, 199,679.12 and 101,694.88

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Solution

The fourth proportional to 144,846.72, 199,679.12 and 101,694.88 is: 140,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,846.72 : 199,679.12 = 101,694.88 : x
  2. Step 2: Convert to fraction form
    144,846.72/199,679.12 = 101,694.88/x
  3. Step 3: Cross multiply
    144,846.72x = 199,679.12 × 101,694.88
  4. Step 4: Simplify right side
    144,846.72x = 20,306,344,146.91
  5. Step 5: Solve for x
    x = 20,306,344,146.91/144,846.72
  6. Step 6: Final answer
    x = 140,191.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.