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Finding the Fourth Proportional to 225,479.40, 338,250.16 and 75,762.47

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Solution

The fourth proportional to 225,479.40, 338,250.16 and 75,762.47 is: 113,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,479.40 : 338,250.16 = 75,762.47 : x
  2. Step 2: Convert to fraction form
    225,479.40/338,250.16 = 75,762.47/x
  3. Step 3: Cross multiply
    225,479.40x = 338,250.16 × 75,762.47
  4. Step 4: Simplify right side
    225,479.40x = 25,626,665,908.24
  5. Step 5: Solve for x
    x = 25,626,665,908.24/225,479.40
  6. Step 6: Final answer
    x = 113,654.13

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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.