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Finding the Fourth Proportional to 69,267.98, 103,774.80 and 61,796.54

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Solution

The fourth proportional to 69,267.98, 103,774.80 and 61,796.54 is: 92,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,267.98 : 103,774.80 = 61,796.54 : x
  2. Step 2: Convert to fraction form
    69,267.98/103,774.80 = 61,796.54/x
  3. Step 3: Cross multiply
    69,267.98x = 103,774.80 × 61,796.54
  4. Step 4: Simplify right side
    69,267.98x = 6,412,923,579.19
  5. Step 5: Solve for x
    x = 6,412,923,579.19/69,267.98
  6. Step 6: Final answer
    x = 92,581.36

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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.