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Finding the Fourth Proportional to 110,926.80, 166,276.80 and 54,680.40

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Solution

The fourth proportional to 110,926.80, 166,276.80 and 54,680.40 is: 81,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,926.80 : 166,276.80 = 54,680.40 : x
  2. Step 2: Convert to fraction form
    110,926.80/166,276.80 = 54,680.40/x
  3. Step 3: Cross multiply
    110,926.80x = 166,276.80 × 54,680.40
  4. Step 4: Simplify right side
    110,926.80x = 9,092,081,934.72
  5. Step 5: Solve for x
    x = 9,092,081,934.72/110,926.80
  6. Step 6: Final answer
    x = 81,964.70

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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.