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Finding the Fourth Proportional to 73,657.88, 101,647.90 and 40,123.88

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Solution

The fourth proportional to 73,657.88, 101,647.90 and 40,123.88 is: 55,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,657.88 : 101,647.90 = 40,123.88 : x
  2. Step 2: Convert to fraction form
    73,657.88/101,647.90 = 40,123.88/x
  3. Step 3: Cross multiply
    73,657.88x = 101,647.90 × 40,123.88
  4. Step 4: Simplify right side
    73,657.88x = 4,078,508,141.85
  5. Step 5: Solve for x
    x = 4,078,508,141.85/73,657.88
  6. Step 6: Final answer
    x = 55,370.97

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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.