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Finding the Fourth Proportional to 135,017.20, 202,525.80 and 133,048.90

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Solution

The fourth proportional to 135,017.20, 202,525.80 and 133,048.90 is: 199,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,017.20 : 202,525.80 = 133,048.90 : x
  2. Step 2: Convert to fraction form
    135,017.20/202,525.80 = 133,048.90/x
  3. Step 3: Cross multiply
    135,017.20x = 202,525.80 × 133,048.90
  4. Step 4: Simplify right side
    135,017.20x = 26,945,834,911.62
  5. Step 5: Solve for x
    x = 26,945,834,911.62/135,017.20
  6. Step 6: Final answer
    x = 199,573.35

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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.