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Finding the Fourth Proportional to 442,245.32, 663,364.33 and 126,702.53

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Solution

The fourth proportional to 442,245.32, 663,364.33 and 126,702.53 is: 190,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,245.32 : 663,364.33 = 126,702.53 : x
  2. Step 2: Convert to fraction form
    442,245.32/663,364.33 = 126,702.53/x
  3. Step 3: Cross multiply
    442,245.32x = 663,364.33 × 126,702.53
  4. Step 4: Simplify right side
    442,245.32x = 84,049,938,922.75
  5. Step 5: Solve for x
    x = 84,049,938,922.75/442,245.32
  6. Step 6: Final answer
    x = 190,052.75

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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.