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Finding the Fourth Proportional to 98,104, 135,383.52 and 53,392

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Solution

The fourth proportional to 98,104, 135,383.52 and 53,392 is: 73,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,104 : 135,383.52 = 53,392 : x
  2. Step 2: Convert to fraction form
    98,104/135,383.52 = 53,392/x
  3. Step 3: Cross multiply
    98,104x = 135,383.52 × 53,392
  4. Step 4: Simplify right side
    98,104x = 7,228,396,899.84
  5. Step 5: Solve for x
    x = 7,228,396,899.84/98,104
  6. Step 6: Final answer
    x = 73,680.96

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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.