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Finding the Fourth Proportional to 275,768.65, 413,603.70 and 73,365.85

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Solution

The fourth proportional to 275,768.65, 413,603.70 and 73,365.85 is: 110,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,768.65 : 413,603.70 = 73,365.85 : x
  2. Step 2: Convert to fraction form
    275,768.65/413,603.70 = 73,365.85/x
  3. Step 3: Cross multiply
    275,768.65x = 413,603.70 × 73,365.85
  4. Step 4: Simplify right side
    275,768.65x = 30,344,387,013.65
  5. Step 5: Solve for x
    x = 30,344,387,013.65/275,768.65
  6. Step 6: Final answer
    x = 110,035.67

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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.