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Finding the Fourth Proportional to 225,958.64, 338,939.91 and 57,479.13

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Solution

The fourth proportional to 225,958.64, 338,939.91 and 57,479.13 is: 86,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,958.64 : 338,939.91 = 57,479.13 : x
  2. Step 2: Convert to fraction form
    225,958.64/338,939.91 = 57,479.13/x
  3. Step 3: Cross multiply
    225,958.64x = 338,939.91 × 57,479.13
  4. Step 4: Simplify right side
    225,958.64x = 19,481,971,149.08
  5. Step 5: Solve for x
    x = 19,481,971,149.08/225,958.64
  6. Step 6: Final answer
    x = 86,219.19

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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.