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Finding the Fourth Proportional to 199,445.60, 299,314.20 and 132,863.60

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Solution

The fourth proportional to 199,445.60, 299,314.20 and 132,863.60 is: 199,392.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,445.60 : 299,314.20 = 132,863.60 : x
  2. Step 2: Convert to fraction form
    199,445.60/299,314.20 = 132,863.60/x
  3. Step 3: Cross multiply
    199,445.60x = 299,314.20 × 132,863.60
  4. Step 4: Simplify right side
    199,445.60x = 39,767,962,143.12
  5. Step 5: Solve for x
    x = 39,767,962,143.12/199,445.60
  6. Step 6: Final answer
    x = 199,392.53

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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.