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Finding the Fourth Proportional to 156,968.60, 235,452.90 and 68,264.60

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Solution

The fourth proportional to 156,968.60, 235,452.90 and 68,264.60 is: 102,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.60 : 235,452.90 = 68,264.60 : x
  2. Step 2: Convert to fraction form
    156,968.60/235,452.90 = 68,264.60/x
  3. Step 3: Cross multiply
    156,968.60x = 235,452.90 × 68,264.60
  4. Step 4: Simplify right side
    156,968.60x = 16,073,098,037.34
  5. Step 5: Solve for x
    x = 16,073,098,037.34/156,968.60
  6. Step 6: Final answer
    x = 102,396.90

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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.