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Finding the Fourth Proportional to 110,928.80, 166,279.80 and 54,682.40

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Solution

The fourth proportional to 110,928.80, 166,279.80 and 54,682.40 is: 81,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,928.80 : 166,279.80 = 54,682.40 : x
  2. Step 2: Convert to fraction form
    110,928.80/166,279.80 = 54,682.40/x
  3. Step 3: Cross multiply
    110,928.80x = 166,279.80 × 54,682.40
  4. Step 4: Simplify right side
    110,928.80x = 9,092,578,535.52
  5. Step 5: Solve for x
    x = 9,092,578,535.52/110,928.80
  6. Step 6: Final answer
    x = 81,967.70

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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.