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Finding the Fourth Proportional to 67,422.78, 101,192.49 and 25,898.94

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Solution

The fourth proportional to 67,422.78, 101,192.49 and 25,898.94 is: 38,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,422.78 : 101,192.49 = 25,898.94 : x
  2. Step 2: Convert to fraction form
    67,422.78/101,192.49 = 25,898.94/x
  3. Step 3: Cross multiply
    67,422.78x = 101,192.49 × 25,898.94
  4. Step 4: Simplify right side
    67,422.78x = 2,620,778,226.96
  5. Step 5: Solve for x
    x = 2,620,778,226.96/67,422.78
  6. Step 6: Final answer
    x = 38,870.81

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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.