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Finding the Fourth Proportional to 49,342.80, 73,868.40 and 43,510.80

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Solution

The fourth proportional to 49,342.80, 73,868.40 and 43,510.80 is: 65,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,342.80 : 73,868.40 = 43,510.80 : x
  2. Step 2: Convert to fraction form
    49,342.80/73,868.40 = 43,510.80/x
  3. Step 3: Cross multiply
    49,342.80x = 73,868.40 × 43,510.80
  4. Step 4: Simplify right side
    49,342.80x = 3,214,073,178.72
  5. Step 5: Solve for x
    x = 3,214,073,178.72/49,342.80
  6. Step 6: Final answer
    x = 65,137.63

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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.