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Finding the Third Proportional to 78,792.75 and 120,011.63

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Solution

The third proportional to 78,792.75 and 120,011.63 is: 182,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,792.75 : 120,011.63 = 120,011.63 : x
  2. Step 2: Convert to fraction form
    78,792.75/120,011.63 = 120,011.63/x
  3. Step 3: Cross multiply
    78,792.75x = 120,011.63 × 120,011.63
  4. Step 4: Simplify right side
    78,792.75x = 14,402,790,135.14
  5. Step 5: Solve for x
    x = 14,402,790,135.14/78,792.75
  6. Step 6: Final answer
    x = 182,793.34

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.