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Finding the Fourth Proportional to 69,073.67, 103,610.49 and 49,390.67

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Solution

The fourth proportional to 69,073.67, 103,610.49 and 49,390.67 is: 74,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,073.67 : 103,610.49 = 49,390.67 : x
  2. Step 2: Convert to fraction form
    69,073.67/103,610.49 = 49,390.67/x
  3. Step 3: Cross multiply
    69,073.67x = 103,610.49 × 49,390.67
  4. Step 4: Simplify right side
    69,073.67x = 5,117,391,002.08
  5. Step 5: Solve for x
    x = 5,117,391,002.08/69,073.67
  6. Step 6: Final answer
    x = 74,085.99

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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.