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Finding the Fourth Proportional to 202,353.90, 303,530.85 and 162,987.90

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Solution

The fourth proportional to 202,353.90, 303,530.85 and 162,987.90 is: 244,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.90 : 303,530.85 = 162,987.90 : x
  2. Step 2: Convert to fraction form
    202,353.90/303,530.85 = 162,987.90/x
  3. Step 3: Cross multiply
    202,353.90x = 303,530.85 × 162,987.90
  4. Step 4: Simplify right side
    202,353.90x = 49,471,855,826.72
  5. Step 5: Solve for x
    x = 49,471,855,826.72/202,353.90
  6. Step 6: Final answer
    x = 244,481.85

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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.