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Finding the Fourth Proportional to 69,229.99, 104,061.75 and 45,688.82

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Solution

The fourth proportional to 69,229.99, 104,061.75 and 45,688.82 is: 68,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,229.99 : 104,061.75 = 45,688.82 : x
  2. Step 2: Convert to fraction form
    69,229.99/104,061.75 = 45,688.82/x
  3. Step 3: Cross multiply
    69,229.99x = 104,061.75 × 45,688.82
  4. Step 4: Simplify right side
    69,229.99x = 4,754,458,564.64
  5. Step 5: Solve for x
    x = 4,754,458,564.64/69,229.99
  6. Step 6: Final answer
    x = 68,676.29

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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.