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Finding the Fourth Proportional to 104,393.92, 144,003.36 and 66,625.60

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Solution

The fourth proportional to 104,393.92, 144,003.36 and 66,625.60 is: 91,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,393.92 : 144,003.36 = 66,625.60 : x
  2. Step 2: Convert to fraction form
    104,393.92/144,003.36 = 66,625.60/x
  3. Step 3: Cross multiply
    104,393.92x = 144,003.36 × 66,625.60
  4. Step 4: Simplify right side
    104,393.92x = 9,594,310,262.02
  5. Step 5: Solve for x
    x = 9,594,310,262.02/104,393.92
  6. Step 6: Final answer
    x = 91,904.88

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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.