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Finding the Fourth Proportional to 378,715.67, 567,673.15 and 165,296.46

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Solution

The fourth proportional to 378,715.67, 567,673.15 and 165,296.46 is: 247,769.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,715.67 : 567,673.15 = 165,296.46 : x
  2. Step 2: Convert to fraction form
    378,715.67/567,673.15 = 165,296.46/x
  3. Step 3: Cross multiply
    378,715.67x = 567,673.15 × 165,296.46
  4. Step 4: Simplify right side
    378,715.67x = 93,834,362,132.05
  5. Step 5: Solve for x
    x = 93,834,362,132.05/378,715.67
  6. Step 6: Final answer
    x = 247,769.95

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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.