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Finding the Fourth Proportional to 104,288.88, 143,842.19 and 68,465.82

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Solution

The fourth proportional to 104,288.88, 143,842.19 and 68,465.82 is: 94,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,288.88 : 143,842.19 = 68,465.82 : x
  2. Step 2: Convert to fraction form
    104,288.88/143,842.19 = 68,465.82/x
  3. Step 3: Cross multiply
    104,288.88x = 143,842.19 × 68,465.82
  4. Step 4: Simplify right side
    104,288.88x = 9,848,273,146.62
  5. Step 5: Solve for x
    x = 9,848,273,146.62/104,288.88
  6. Step 6: Final answer
    x = 94,432.63

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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.