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Finding the Fourth Proportional to 67,805.20, 101,633.91 and 57,914.47

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Solution

The fourth proportional to 67,805.20, 101,633.91 and 57,914.47 is: 86,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,805.20 : 101,633.91 = 57,914.47 : x
  2. Step 2: Convert to fraction form
    67,805.20/101,633.91 = 57,914.47/x
  3. Step 3: Cross multiply
    67,805.20x = 101,633.91 × 57,914.47
  4. Step 4: Simplify right side
    67,805.20x = 5,886,074,031.68
  5. Step 5: Solve for x
    x = 5,886,074,031.68/67,805.20
  6. Step 6: Final answer
    x = 86,808.59

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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.