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Finding the Fourth Proportional to 217,730.00, 326,615.56 and 84,620.48

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Solution

The fourth proportional to 217,730.00, 326,615.56 and 84,620.48 is: 126,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,730.00 : 326,615.56 = 84,620.48 : x
  2. Step 2: Convert to fraction form
    217,730.00/326,615.56 = 84,620.48/x
  3. Step 3: Cross multiply
    217,730.00x = 326,615.56 × 84,620.48
  4. Step 4: Simplify right side
    217,730.00x = 27,638,363,618.04
  5. Step 5: Solve for x
    x = 27,638,363,618.04/217,730.00
  6. Step 6: Final answer
    x = 126,938.70

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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.