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Finding the Fourth Proportional to 69,807.26, 104,574.45 and 55,796.78

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Solution

The fourth proportional to 69,807.26, 104,574.45 and 55,796.78 is: 83,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,807.26 : 104,574.45 = 55,796.78 : x
  2. Step 2: Convert to fraction form
    69,807.26/104,574.45 = 55,796.78/x
  3. Step 3: Cross multiply
    69,807.26x = 104,574.45 × 55,796.78
  4. Step 4: Simplify right side
    69,807.26x = 5,834,917,580.27
  5. Step 5: Solve for x
    x = 5,834,917,580.27/69,807.26
  6. Step 6: Final answer
    x = 83,586.11

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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.