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Finding the Fourth Proportional to 178,306.86, 267,878.34 and 168,219.12

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Solution

The fourth proportional to 178,306.86, 267,878.34 and 168,219.12 is: 252,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,306.86 : 267,878.34 = 168,219.12 : x
  2. Step 2: Convert to fraction form
    178,306.86/267,878.34 = 168,219.12/x
  3. Step 3: Cross multiply
    178,306.86x = 267,878.34 × 168,219.12
  4. Step 4: Simplify right side
    178,306.86x = 45,062,258,621.86
  5. Step 5: Solve for x
    x = 45,062,258,621.86/178,306.86
  6. Step 6: Final answer
    x = 252,723.08

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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.