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Finding the Fourth Proportional to 104,296.01, 143,887.80 and 68,040.08

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Solution

The fourth proportional to 104,296.01, 143,887.80 and 68,040.08 is: 93,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,296.01 : 143,887.80 = 68,040.08 : x
  2. Step 2: Convert to fraction form
    104,296.01/143,887.80 = 68,040.08/x
  3. Step 3: Cross multiply
    104,296.01x = 143,887.80 × 68,040.08
  4. Step 4: Simplify right side
    104,296.01x = 9,790,137,423.02
  5. Step 5: Solve for x
    x = 9,790,137,423.02/104,296.01
  6. Step 6: Final answer
    x = 93,868.76

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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.