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Finding the Fourth Proportional to 104,289.88, 143,843.56 and 68,466.84

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Solution

The fourth proportional to 104,289.88, 143,843.56 and 68,466.84 is: 94,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.88 : 143,843.56 = 68,466.84 : x
  2. Step 2: Convert to fraction form
    104,289.88/143,843.56 = 68,466.84/x
  3. Step 3: Cross multiply
    104,289.88x = 143,843.56 × 68,466.84
  4. Step 4: Simplify right side
    104,289.88x = 9,848,514,007.55
  5. Step 5: Solve for x
    x = 9,848,514,007.55/104,289.88
  6. Step 6: Final answer
    x = 94,434.03

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1.5x scale

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.