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Finding the Fourth Proportional to 110,979.20, 166,468.80 and 37,107.20

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Solution

The fourth proportional to 110,979.20, 166,468.80 and 37,107.20 is: 55,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,979.20 : 166,468.80 = 37,107.20 : x
  2. Step 2: Convert to fraction form
    110,979.20/166,468.80 = 37,107.20/x
  3. Step 3: Cross multiply
    110,979.20x = 166,468.80 × 37,107.20
  4. Step 4: Simplify right side
    110,979.20x = 6,177,191,055.36
  5. Step 5: Solve for x
    x = 6,177,191,055.36/110,979.20
  6. Step 6: Final answer
    x = 55,660.80

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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.