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Finding the Fourth Proportional to 103,625.52, 143,037.90 and 69,622.44

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Solution

The fourth proportional to 103,625.52, 143,037.90 and 69,622.44 is: 96,102.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.52 : 143,037.90 = 69,622.44 : x
  2. Step 2: Convert to fraction form
    103,625.52/143,037.90 = 69,622.44/x
  3. Step 3: Cross multiply
    103,625.52x = 143,037.90 × 69,622.44
  4. Step 4: Simplify right side
    103,625.52x = 9,958,647,610.48
  5. Step 5: Solve for x
    x = 9,958,647,610.48/103,625.52
  6. Step 6: Final answer
    x = 96,102.27

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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.