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Finding the Third Proportional to 78,697.13 and 168,623.06

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Solution

The third proportional to 78,697.13 and 168,623.06 is: 361,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,697.13 : 168,623.06 = 168,623.06 : x
  2. Step 2: Convert to fraction form
    78,697.13/168,623.06 = 168,623.06/x
  3. Step 3: Cross multiply
    78,697.13x = 168,623.06 × 168,623.06
  4. Step 4: Simplify right side
    78,697.13x = 28,433,737,206.88
  5. Step 5: Solve for x
    x = 28,433,737,206.88/78,697.13
  6. Step 6: Final answer
    x = 361,305.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.