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Finding the Fourth Proportional to 80,439.98, 110,934.51 and 50,228.06

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Solution

The fourth proportional to 80,439.98, 110,934.51 and 50,228.06 is: 69,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.98 : 110,934.51 = 50,228.06 : x
  2. Step 2: Convert to fraction form
    80,439.98/110,934.51 = 50,228.06/x
  3. Step 3: Cross multiply
    80,439.98x = 110,934.51 × 50,228.06
  4. Step 4: Simplify right side
    80,439.98x = 5,572,025,224.35
  5. Step 5: Solve for x
    x = 5,572,025,224.35/80,439.98
  6. Step 6: Final answer
    x = 69,269.35

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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.