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Finding the Third Proportional to 118,618.31 and 255,921.19

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Solution

The third proportional to 118,618.31 and 255,921.19 is: 552,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,618.31 : 255,921.19 = 255,921.19 : x
  2. Step 2: Convert to fraction form
    118,618.31/255,921.19 = 255,921.19/x
  3. Step 3: Cross multiply
    118,618.31x = 255,921.19 × 255,921.19
  4. Step 4: Simplify right side
    118,618.31x = 65,495,654,211.41
  5. Step 5: Solve for x
    x = 65,495,654,211.41/118,618.31
  6. Step 6: Final answer
    x = 552,154.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.