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Finding the Fourth Proportional to 163,077.99, 225,072.23 and 99,452.70

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Solution

The fourth proportional to 163,077.99, 225,072.23 and 99,452.70 is: 137,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,077.99 : 225,072.23 = 99,452.70 : x
  2. Step 2: Convert to fraction form
    163,077.99/225,072.23 = 99,452.70/x
  3. Step 3: Cross multiply
    163,077.99x = 225,072.23 × 99,452.70
  4. Step 4: Simplify right side
    163,077.99x = 22,384,040,968.52
  5. Step 5: Solve for x
    x = 22,384,040,968.52/163,077.99
  6. Step 6: Final answer
    x = 137,259.73

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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.