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Finding the Third Proportional to 115,339.50 and 247,921.50

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Solution

The third proportional to 115,339.50 and 247,921.50 is: 532,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,339.50 : 247,921.50 = 247,921.50 : x
  2. Step 2: Convert to fraction form
    115,339.50/247,921.50 = 247,921.50/x
  3. Step 3: Cross multiply
    115,339.50x = 247,921.50 × 247,921.50
  4. Step 4: Simplify right side
    115,339.50x = 61,465,070,162.25
  5. Step 5: Solve for x
    x = 61,465,070,162.25/115,339.50
  6. Step 6: Final answer
    x = 532,905.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.