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Finding the Fourth Proportional to 69,476.40, 104,203.80 and 19,551.60

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Solution

The fourth proportional to 69,476.40, 104,203.80 and 19,551.60 is: 29,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,476.40 : 104,203.80 = 19,551.60 : x
  2. Step 2: Convert to fraction form
    69,476.40/104,203.80 = 19,551.60/x
  3. Step 3: Cross multiply
    69,476.40x = 104,203.80 × 19,551.60
  4. Step 4: Simplify right side
    69,476.40x = 2,037,351,016.08
  5. Step 5: Solve for x
    x = 2,037,351,016.08/69,476.40
  6. Step 6: Final answer
    x = 29,324.36

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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.