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Finding the Fourth Proportional to 104,296.52, 143,888.48 and 68,040.59

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Solution

The fourth proportional to 104,296.52, 143,888.48 and 68,040.59 is: 93,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,296.52 : 143,888.48 = 68,040.59 : x
  2. Step 2: Convert to fraction form
    104,296.52/143,888.48 = 68,040.59/x
  3. Step 3: Cross multiply
    104,296.52x = 143,888.48 × 68,040.59
  4. Step 4: Simplify right side
    104,296.52x = 9,790,257,073.40
  5. Step 5: Solve for x
    x = 9,790,257,073.40/104,296.52
  6. Step 6: Final answer
    x = 93,869.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.