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Finding the Fourth Proportional to 202,341.80, 303,512.70 and 107,863.40

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Solution

The fourth proportional to 202,341.80, 303,512.70 and 107,863.40 is: 161,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,341.80 : 303,512.70 = 107,863.40 : x
  2. Step 2: Convert to fraction form
    202,341.80/303,512.70 = 107,863.40/x
  3. Step 3: Cross multiply
    202,341.80x = 303,512.70 × 107,863.40
  4. Step 4: Simplify right side
    202,341.80x = 32,737,911,765.18
  5. Step 5: Solve for x
    x = 32,737,911,765.18/202,341.80
  6. Step 6: Final answer
    x = 161,795.10

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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.