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Finding the Fourth Proportional to 212,335.60, 318,452.16 and 62,535.20

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Solution

The fourth proportional to 212,335.60, 318,452.16 and 62,535.20 is: 93,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,335.60 : 318,452.16 = 62,535.20 : x
  2. Step 2: Convert to fraction form
    212,335.60/318,452.16 = 62,535.20/x
  3. Step 3: Cross multiply
    212,335.60x = 318,452.16 × 62,535.20
  4. Step 4: Simplify right side
    212,335.60x = 19,914,469,516.03
  5. Step 5: Solve for x
    x = 19,914,469,516.03/212,335.60
  6. Step 6: Final answer
    x = 93,787.71

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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.