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Finding the Third Proportional to 72,211.97 and 155,841.55

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Solution

The third proportional to 72,211.97 and 155,841.55 is: 336,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,211.97 : 155,841.55 = 155,841.55 : x
  2. Step 2: Convert to fraction form
    72,211.97/155,841.55 = 155,841.55/x
  3. Step 3: Cross multiply
    72,211.97x = 155,841.55 × 155,841.55
  4. Step 4: Simplify right side
    72,211.97x = 24,286,588,036.77
  5. Step 5: Solve for x
    x = 24,286,588,036.77/72,211.97
  6. Step 6: Final answer
    x = 336,323.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.