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Finding the Fourth Proportional to 178,418.96, 267,614.76 and 66,046.40

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Solution

The fourth proportional to 178,418.96, 267,614.76 and 66,046.40 is: 99,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,418.96 : 267,614.76 = 66,046.40 : x
  2. Step 2: Convert to fraction form
    178,418.96/267,614.76 = 66,046.40/x
  3. Step 3: Cross multiply
    178,418.96x = 267,614.76 × 66,046.40
  4. Step 4: Simplify right side
    178,418.96x = 17,674,991,484.86
  5. Step 5: Solve for x
    x = 17,674,991,484.86/178,418.96
  6. Step 6: Final answer
    x = 99,064.54

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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.