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Finding the Fourth Proportional to 92,198.28, 126,985.14 and 79,601.16

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Solution

The fourth proportional to 92,198.28, 126,985.14 and 79,601.16 is: 109,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,198.28 : 126,985.14 = 79,601.16 : x
  2. Step 2: Convert to fraction form
    92,198.28/126,985.14 = 79,601.16/x
  3. Step 3: Cross multiply
    92,198.28x = 126,985.14 × 79,601.16
  4. Step 4: Simplify right side
    92,198.28x = 10,108,164,446.76
  5. Step 5: Solve for x
    x = 10,108,164,446.76/92,198.28
  6. Step 6: Final answer
    x = 109,635.07

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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.