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Finding the Fourth Proportional to 178,278.40, 267,028.80 and 158,579.20

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Solution

The fourth proportional to 178,278.40, 267,028.80 and 158,579.20 is: 237,522.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,278.40 : 267,028.80 = 158,579.20 : x
  2. Step 2: Convert to fraction form
    178,278.40/267,028.80 = 158,579.20/x
  3. Step 3: Cross multiply
    178,278.40x = 267,028.80 × 158,579.20
  4. Step 4: Simplify right side
    178,278.40x = 42,345,213,480.96
  5. Step 5: Solve for x
    x = 42,345,213,480.96/178,278.40
  6. Step 6: Final answer
    x = 237,522.96

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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.