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Finding the Fourth Proportional to 225,531.68, 338,430.69 and 83,476.71

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Solution

The fourth proportional to 225,531.68, 338,430.69 and 83,476.71 is: 125,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,531.68 : 338,430.69 = 83,476.71 : x
  2. Step 2: Convert to fraction form
    225,531.68/338,430.69 = 83,476.71/x
  3. Step 3: Cross multiply
    225,531.68x = 338,430.69 × 83,476.71
  4. Step 4: Simplify right side
    225,531.68x = 28,251,080,564.23
  5. Step 5: Solve for x
    x = 28,251,080,564.23/225,531.68
  6. Step 6: Final answer
    x = 125,264.36

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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.