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Finding the Third Proportional to 63,390.09 and 137,350.69

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Solution

The third proportional to 63,390.09 and 137,350.69 is: 297,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,390.09 : 137,350.69 = 137,350.69 : x
  2. Step 2: Convert to fraction form
    63,390.09/137,350.69 = 137,350.69/x
  3. Step 3: Cross multiply
    63,390.09x = 137,350.69 × 137,350.69
  4. Step 4: Simplify right side
    63,390.09x = 18,865,211,356.72
  5. Step 5: Solve for x
    x = 18,865,211,356.72/63,390.09
  6. Step 6: Final answer
    x = 297,605.04

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.