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Finding the Third Proportional to 78,394 and 119,433

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Solution

The third proportional to 78,394 and 119,433 is: 181,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,394 : 119,433 = 119,433 : x
  2. Step 2: Convert to fraction form
    78,394/119,433 = 119,433/x
  3. Step 3: Cross multiply
    78,394x = 119,433 × 119,433
  4. Step 4: Simplify right side
    78,394x = 14,264,241,489
  5. Step 5: Solve for x
    x = 14,264,241,489/78,394
  6. Step 6: Final answer
    x = 181,955.78

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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.