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Finding the Fourth Proportional to 67,901.86, 101,435.45 and 49,020.76

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Solution

The fourth proportional to 67,901.86, 101,435.45 and 49,020.76 is: 73,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,901.86 : 101,435.45 = 49,020.76 : x
  2. Step 2: Convert to fraction form
    67,901.86/101,435.45 = 49,020.76/x
  3. Step 3: Cross multiply
    67,901.86x = 101,435.45 × 49,020.76
  4. Step 4: Simplify right side
    67,901.86x = 4,972,442,849.94
  5. Step 5: Solve for x
    x = 4,972,442,849.94/67,901.86
  6. Step 6: Final answer
    x = 73,229.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.