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Finding the Fourth Proportional to 104,295.52, 143,887.10 and 68,039.59

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Solution

The fourth proportional to 104,295.52, 143,887.10 and 68,039.59 is: 93,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.52 : 143,887.10 = 68,039.59 : x
  2. Step 2: Convert to fraction form
    104,295.52/143,887.10 = 68,039.59/x
  3. Step 3: Cross multiply
    104,295.52x = 143,887.10 × 68,039.59
  4. Step 4: Simplify right side
    104,295.52x = 9,790,019,290.29
  5. Step 5: Solve for x
    x = 9,790,019,290.29/104,295.52
  6. Step 6: Final answer
    x = 93,868.07

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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.