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Finding the Fourth Proportional to 59,141.97, 81,408.76 and 51,574.95

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Solution

The fourth proportional to 59,141.97, 81,408.76 and 51,574.95 is: 70,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,141.97 : 81,408.76 = 51,574.95 : x
  2. Step 2: Convert to fraction form
    59,141.97/81,408.76 = 51,574.95/x
  3. Step 3: Cross multiply
    59,141.97x = 81,408.76 × 51,574.95
  4. Step 4: Simplify right side
    59,141.97x = 4,198,652,899.11
  5. Step 5: Solve for x
    x = 4,198,652,899.11/59,141.97
  6. Step 6: Final answer
    x = 70,992.78

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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.