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Finding the Fourth Proportional to 80,368.20, 110,911.50 and 44,557.56

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Solution

The fourth proportional to 80,368.20, 110,911.50 and 44,557.56 is: 61,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,368.20 : 110,911.50 = 44,557.56 : x
  2. Step 2: Convert to fraction form
    80,368.20/110,911.50 = 44,557.56/x
  3. Step 3: Cross multiply
    80,368.20x = 110,911.50 × 44,557.56
  4. Step 4: Simplify right side
    80,368.20x = 4,941,945,815.94
  5. Step 5: Solve for x
    x = 4,941,945,815.94/80,368.20
  6. Step 6: Final answer
    x = 61,491.31

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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.