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Finding the Third Proportional to 74,266.88 and 103,320.56

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Solution

The third proportional to 74,266.88 and 103,320.56 is: 143,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,266.88 : 103,320.56 = 103,320.56 : x
  2. Step 2: Convert to fraction form
    74,266.88/103,320.56 = 103,320.56/x
  3. Step 3: Cross multiply
    74,266.88x = 103,320.56 × 103,320.56
  4. Step 4: Simplify right side
    74,266.88x = 10,675,138,635.32
  5. Step 5: Solve for x
    x = 10,675,138,635.32/74,266.88
  6. Step 6: Final answer
    x = 143,740.24

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.