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Finding the Fourth Proportional to 59,012.85, 81,541.31 and 47,173.89

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Solution

The fourth proportional to 59,012.85, 81,541.31 and 47,173.89 is: 65,182.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,012.85 : 81,541.31 = 47,173.89 : x
  2. Step 2: Convert to fraction form
    59,012.85/81,541.31 = 47,173.89/x
  3. Step 3: Cross multiply
    59,012.85x = 81,541.31 × 47,173.89
  4. Step 4: Simplify right side
    59,012.85x = 3,846,620,552.53
  5. Step 5: Solve for x
    x = 3,846,620,552.53/59,012.85
  6. Step 6: Final answer
    x = 65,182.76

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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.