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Finding the Fourth Proportional to 156,072.60, 234,108.90 and 124,968.60

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Solution

The fourth proportional to 156,072.60, 234,108.90 and 124,968.60 is: 187,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,072.60 : 234,108.90 = 124,968.60 : x
  2. Step 2: Convert to fraction form
    156,072.60/234,108.90 = 124,968.60/x
  3. Step 3: Cross multiply
    156,072.60x = 234,108.90 × 124,968.60
  4. Step 4: Simplify right side
    156,072.60x = 29,256,261,480.54
  5. Step 5: Solve for x
    x = 29,256,261,480.54/156,072.60
  6. Step 6: Final answer
    x = 187,452.90

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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.