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Finding the Fourth Proportional to 235,863.20, 325,517.20 and 145,200.98

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Solution

The fourth proportional to 235,863.20, 325,517.20 and 145,200.98 is: 200,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,863.20 : 325,517.20 = 145,200.98 : x
  2. Step 2: Convert to fraction form
    235,863.20/325,517.20 = 145,200.98/x
  3. Step 3: Cross multiply
    235,863.20x = 325,517.20 × 145,200.98
  4. Step 4: Simplify right side
    235,863.20x = 47,265,416,446.86
  5. Step 5: Solve for x
    x = 47,265,416,446.86/235,863.20
  6. Step 6: Final answer
    x = 200,393.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.