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Finding the Fourth Proportional to 178,540.80, 267,438.60 and 83,851.80

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Solution

The fourth proportional to 178,540.80, 267,438.60 and 83,851.80 is: 125,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,540.80 : 267,438.60 = 83,851.80 : x
  2. Step 2: Convert to fraction form
    178,540.80/267,438.60 = 83,851.80/x
  3. Step 3: Cross multiply
    178,540.80x = 267,438.60 × 83,851.80
  4. Step 4: Simplify right side
    178,540.80x = 22,425,207,999.48
  5. Step 5: Solve for x
    x = 22,425,207,999.48/178,540.80
  6. Step 6: Final answer
    x = 125,602.71

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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.