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Finding the Fourth Proportional to 324,971.39, 487,358.67 and 88,283.32

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Solution

The fourth proportional to 324,971.39, 487,358.67 and 88,283.32 is: 132,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,971.39 : 487,358.67 = 88,283.32 : x
  2. Step 2: Convert to fraction form
    324,971.39/487,358.67 = 88,283.32/x
  3. Step 3: Cross multiply
    324,971.39x = 487,358.67 × 88,283.32
  4. Step 4: Simplify right side
    324,971.39x = 43,025,640,531.05
  5. Step 5: Solve for x
    x = 43,025,640,531.05/324,971.39
  6. Step 6: Final answer
    x = 132,398.24

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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.