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Finding the Fourth Proportional to 73,561, 101,515.80 and 40,027

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Solution

The fourth proportional to 73,561, 101,515.80 and 40,027 is: 55,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,561 : 101,515.80 = 40,027 : x
  2. Step 2: Convert to fraction form
    73,561/101,515.80 = 40,027/x
  3. Step 3: Cross multiply
    73,561x = 101,515.80 × 40,027
  4. Step 4: Simplify right side
    73,561x = 4,063,372,926.60
  5. Step 5: Solve for x
    x = 4,063,372,926.60/73,561
  6. Step 6: Final answer
    x = 55,238.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.