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Finding the Fourth Proportional to 379,178.94, 568,610.60 and 154,386.94

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Solution

The fourth proportional to 379,178.94, 568,610.60 and 154,386.94 is: 231,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,178.94 : 568,610.60 = 154,386.94 : x
  2. Step 2: Convert to fraction form
    379,178.94/568,610.60 = 154,386.94/x
  3. Step 3: Cross multiply
    379,178.94x = 568,610.60 × 154,386.94
  4. Step 4: Simplify right side
    379,178.94x = 87,786,050,585.56
  5. Step 5: Solve for x
    x = 87,786,050,585.56/379,178.94
  6. Step 6: Final answer
    x = 231,516.16

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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.