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Finding the Fourth Proportional to 389,553.74, 584,330.61 and 94,065.74

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Solution

The fourth proportional to 389,553.74, 584,330.61 and 94,065.74 is: 141,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,553.74 : 584,330.61 = 94,065.74 : x
  2. Step 2: Convert to fraction form
    389,553.74/584,330.61 = 94,065.74/x
  3. Step 3: Cross multiply
    389,553.74x = 584,330.61 × 94,065.74
  4. Step 4: Simplify right side
    389,553.74x = 54,965,491,234.30
  5. Step 5: Solve for x
    x = 54,965,491,234.30/389,553.74
  6. Step 6: Final answer
    x = 141,098.61

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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.