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Finding the Fourth Proportional to 223,198.80, 308,067.48 and 127,760.64

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Solution

The fourth proportional to 223,198.80, 308,067.48 and 127,760.64 is: 176,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,198.80 : 308,067.48 = 127,760.64 : x
  2. Step 2: Convert to fraction form
    223,198.80/308,067.48 = 127,760.64/x
  3. Step 3: Cross multiply
    223,198.80x = 308,067.48 × 127,760.64
  4. Step 4: Simplify right side
    223,198.80x = 39,358,898,407.99
  5. Step 5: Solve for x
    x = 39,358,898,407.99/223,198.80
  6. Step 6: Final answer
    x = 176,340.10

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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.