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Finding the Fourth Proportional to 67,699.68, 101,573.84 and 30,256.64

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Solution

The fourth proportional to 67,699.68, 101,573.84 and 30,256.64 is: 45,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,699.68 : 101,573.84 = 30,256.64 : x
  2. Step 2: Convert to fraction form
    67,699.68/101,573.84 = 30,256.64/x
  3. Step 3: Cross multiply
    67,699.68x = 101,573.84 × 30,256.64
  4. Step 4: Simplify right side
    67,699.68x = 3,073,283,110.30
  5. Step 5: Solve for x
    x = 3,073,283,110.30/67,699.68
  6. Step 6: Final answer
    x = 45,395.83

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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.