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Finding the Fourth Proportional to 230,067.52, 317,464.86 and 128,067.46

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Solution

The fourth proportional to 230,067.52, 317,464.86 and 128,067.46 is: 176,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,067.52 : 317,464.86 = 128,067.46 : x
  2. Step 2: Convert to fraction form
    230,067.52/317,464.86 = 128,067.46/x
  3. Step 3: Cross multiply
    230,067.52x = 317,464.86 × 128,067.46
  4. Step 4: Simplify right side
    230,067.52x = 40,656,918,259.46
  5. Step 5: Solve for x
    x = 40,656,918,259.46/230,067.52
  6. Step 6: Final answer
    x = 176,717.33

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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.