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Finding the Third Proportional to 78,357.75 and 117,535.50

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Solution

The third proportional to 78,357.75 and 117,535.50 is: 176,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,357.75 : 117,535.50 = 117,535.50 : x
  2. Step 2: Convert to fraction form
    78,357.75/117,535.50 = 117,535.50/x
  3. Step 3: Cross multiply
    78,357.75x = 117,535.50 × 117,535.50
  4. Step 4: Simplify right side
    78,357.75x = 13,814,593,760.25
  5. Step 5: Solve for x
    x = 13,814,593,760.25/78,357.75
  6. Step 6: Final answer
    x = 176,301.56

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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.