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Finding the Fourth Proportional to 178,639.72, 267,956.82 and 60,394.12

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Solution

The fourth proportional to 178,639.72, 267,956.82 and 60,394.12 is: 90,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,639.72 : 267,956.82 = 60,394.12 : x
  2. Step 2: Convert to fraction form
    178,639.72/267,956.82 = 60,394.12/x
  3. Step 3: Cross multiply
    178,639.72x = 267,956.82 × 60,394.12
  4. Step 4: Simplify right side
    178,639.72x = 16,183,016,341.90
  5. Step 5: Solve for x
    x = 16,183,016,341.90/178,639.72
  6. Step 6: Final answer
    x = 90,590.25

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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.