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Finding the Fourth Proportional to 69,621.66, 104,468.49 and 34,560.54

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Solution

The fourth proportional to 69,621.66, 104,468.49 and 34,560.54 is: 51,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,621.66 : 104,468.49 = 34,560.54 : x
  2. Step 2: Convert to fraction form
    69,621.66/104,468.49 = 34,560.54/x
  3. Step 3: Cross multiply
    69,621.66x = 104,468.49 × 34,560.54
  4. Step 4: Simplify right side
    69,621.66x = 3,610,487,427.38
  5. Step 5: Solve for x
    x = 3,610,487,427.38/69,621.66
  6. Step 6: Final answer
    x = 51,858.68

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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.