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Finding the Third Proportional to 52,220 and 78,134

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Solution

The third proportional to 52,220 and 78,134 is: 116,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,220 : 78,134 = 78,134 : x
  2. Step 2: Convert to fraction form
    52,220/78,134 = 78,134/x
  3. Step 3: Cross multiply
    52,220x = 78,134 × 78,134
  4. Step 4: Simplify right side
    52,220x = 6,104,921,956
  5. Step 5: Solve for x
    x = 6,104,921,956/52,220
  6. Step 6: Final answer
    x = 116,907.74

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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.