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Finding the Fourth Proportional to 80,369.28, 110,909.28 and 44,559.12

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Solution

The fourth proportional to 80,369.28, 110,909.28 and 44,559.12 is: 61,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,369.28 : 110,909.28 = 44,559.12 : x
  2. Step 2: Convert to fraction form
    80,369.28/110,909.28 = 44,559.12/x
  3. Step 3: Cross multiply
    80,369.28x = 110,909.28 × 44,559.12
  4. Step 4: Simplify right side
    80,369.28x = 4,942,019,916.63
  5. Step 5: Solve for x
    x = 4,942,019,916.63/80,369.28
  6. Step 6: Final answer
    x = 61,491.40

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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.