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Finding the Fourth Proportional to 79,687.48, 119,198.28 and 55,993.36

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Solution

The fourth proportional to 79,687.48, 119,198.28 and 55,993.36 is: 83,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,687.48 : 119,198.28 = 55,993.36 : x
  2. Step 2: Convert to fraction form
    79,687.48/119,198.28 = 55,993.36/x
  3. Step 3: Cross multiply
    79,687.48x = 119,198.28 × 55,993.36
  4. Step 4: Simplify right side
    79,687.48x = 6,674,312,203.42
  5. Step 5: Solve for x
    x = 6,674,312,203.42/79,687.48
  6. Step 6: Final answer
    x = 83,756.10

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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.