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Finding the Fourth Proportional to 67,568, 93,249.60 and 37,765.76

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Solution

The fourth proportional to 67,568, 93,249.60 and 37,765.76 is: 52,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,568 : 93,249.60 = 37,765.76 : x
  2. Step 2: Convert to fraction form
    67,568/93,249.60 = 37,765.76/x
  3. Step 3: Cross multiply
    67,568x = 93,249.60 × 37,765.76
  4. Step 4: Simplify right side
    67,568x = 3,521,642,013.70
  5. Step 5: Solve for x
    x = 3,521,642,013.70/67,568
  6. Step 6: Final answer
    x = 52,119.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.