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Finding the Fourth Proportional to 119,426.42, 178,992 and 60,278.96

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Solution

The fourth proportional to 119,426.42, 178,992 and 60,278.96 is: 90,343.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,426.42 : 178,992 = 60,278.96 : x
  2. Step 2: Convert to fraction form
    119,426.42/178,992 = 60,278.96/x
  3. Step 3: Cross multiply
    119,426.42x = 178,992 × 60,278.96
  4. Step 4: Simplify right side
    119,426.42x = 10,789,451,608.32
  5. Step 5: Solve for x
    x = 10,789,451,608.32/119,426.42
  6. Step 6: Final answer
    x = 90,343.93

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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.