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Finding the Fourth Proportional to 67,493.25, 101,185.20 and 28,079.87

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Solution

The fourth proportional to 67,493.25, 101,185.20 and 28,079.87 is: 42,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,493.25 : 101,185.20 = 28,079.87 : x
  2. Step 2: Convert to fraction form
    67,493.25/101,185.20 = 28,079.87/x
  3. Step 3: Cross multiply
    67,493.25x = 101,185.20 × 28,079.87
  4. Step 4: Simplify right side
    67,493.25x = 2,841,266,756.00
  5. Step 5: Solve for x
    x = 2,841,266,756.00/67,493.25
  6. Step 6: Final answer
    x = 42,097.05

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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.