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Finding the Fourth Proportional to 202,462.90, 303,694.35 and 155,223.70

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Solution

The fourth proportional to 202,462.90, 303,694.35 and 155,223.70 is: 232,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,462.90 : 303,694.35 = 155,223.70 : x
  2. Step 2: Convert to fraction form
    202,462.90/303,694.35 = 155,223.70/x
  3. Step 3: Cross multiply
    202,462.90x = 303,694.35 × 155,223.70
  4. Step 4: Simplify right side
    202,462.90x = 47,140,560,676.10
  5. Step 5: Solve for x
    x = 47,140,560,676.10/202,462.90
  6. Step 6: Final answer
    x = 232,835.55

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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.