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Finding the Fourth Proportional to 348,383.44, 522,598.92 and 138,021.04

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Solution

The fourth proportional to 348,383.44, 522,598.92 and 138,021.04 is: 207,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,383.44 : 522,598.92 = 138,021.04 : x
  2. Step 2: Convert to fraction form
    348,383.44/522,598.92 = 138,021.04/x
  3. Step 3: Cross multiply
    348,383.44x = 522,598.92 × 138,021.04
  4. Step 4: Simplify right side
    348,383.44x = 72,129,646,441.28
  5. Step 5: Solve for x
    x = 72,129,646,441.28/348,383.44
  6. Step 6: Final answer
    x = 207,040.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.