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Finding the Third Proportional to 78,036.75 and 165,793.50

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Solution

The third proportional to 78,036.75 and 165,793.50 is: 352,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,036.75 : 165,793.50 = 165,793.50 : x
  2. Step 2: Convert to fraction form
    78,036.75/165,793.50 = 165,793.50/x
  3. Step 3: Cross multiply
    78,036.75x = 165,793.50 × 165,793.50
  4. Step 4: Simplify right side
    78,036.75x = 27,487,484,642.25
  5. Step 5: Solve for x
    x = 27,487,484,642.25/78,036.75
  6. Step 6: Final answer
    x = 352,237.69

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.