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Finding the Fourth Proportional to 79,082.28, 109,122.80 and 47,244.44

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Solution

The fourth proportional to 79,082.28, 109,122.80 and 47,244.44 is: 65,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,082.28 : 109,122.80 = 47,244.44 : x
  2. Step 2: Convert to fraction form
    79,082.28/109,122.80 = 47,244.44/x
  3. Step 3: Cross multiply
    79,082.28x = 109,122.80 × 47,244.44
  4. Step 4: Simplify right side
    79,082.28x = 5,155,445,577.23
  5. Step 5: Solve for x
    x = 5,155,445,577.23/79,082.28
  6. Step 6: Final answer
    x = 65,190.91

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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.