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Finding the Fourth Proportional to 202,403.70, 303,119.55 and 108,702.90

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Solution

The fourth proportional to 202,403.70, 303,119.55 and 108,702.90 is: 162,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,403.70 : 303,119.55 = 108,702.90 : x
  2. Step 2: Convert to fraction form
    202,403.70/303,119.55 = 108,702.90/x
  3. Step 3: Cross multiply
    202,403.70x = 303,119.55 × 108,702.90
  4. Step 4: Simplify right side
    202,403.70x = 32,949,974,131.70
  5. Step 5: Solve for x
    x = 32,949,974,131.70/202,403.70
  6. Step 6: Final answer
    x = 162,793.34

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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.