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Finding the Fourth Proportional to 80,303.78, 120,474.81 and 27,713.72

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Solution

The fourth proportional to 80,303.78, 120,474.81 and 27,713.72 is: 41,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,303.78 : 120,474.81 = 27,713.72 : x
  2. Step 2: Convert to fraction form
    80,303.78/120,474.81 = 27,713.72/x
  3. Step 3: Cross multiply
    80,303.78x = 120,474.81 × 27,713.72
  4. Step 4: Simplify right side
    80,303.78x = 3,338,805,151.39
  5. Step 5: Solve for x
    x = 3,338,805,151.39/80,303.78
  6. Step 6: Final answer
    x = 41,577.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.