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Finding the Fourth Proportional to 67,709.68, 101,588.88 and 30,266.68

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Solution

The fourth proportional to 67,709.68, 101,588.88 and 30,266.68 is: 45,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,709.68 : 101,588.88 = 30,266.68 : x
  2. Step 2: Convert to fraction form
    67,709.68/101,588.88 = 30,266.68/x
  3. Step 3: Cross multiply
    67,709.68x = 101,588.88 × 30,266.68
  4. Step 4: Simplify right side
    67,709.68x = 3,074,758,122.52
  5. Step 5: Solve for x
    x = 3,074,758,122.52/67,709.68
  6. Step 6: Final answer
    x = 45,410.91

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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.