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Finding the Fourth Proportional to 67,795.32, 101,649.78 and 30,366.84

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Solution

The fourth proportional to 67,795.32, 101,649.78 and 30,366.84 is: 45,530.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,795.32 : 101,649.78 = 30,366.84 : x
  2. Step 2: Convert to fraction form
    67,795.32/101,649.78 = 30,366.84/x
  3. Step 3: Cross multiply
    67,795.32x = 101,649.78 × 30,366.84
  4. Step 4: Simplify right side
    67,795.32x = 3,086,782,605.30
  5. Step 5: Solve for x
    x = 3,086,782,605.30/67,795.32
  6. Step 6: Final answer
    x = 45,530.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.