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Finding the Fourth Proportional to 347,493.96, 479,518.19 and 192,434.12

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Solution

The fourth proportional to 347,493.96, 479,518.19 and 192,434.12 is: 265,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,493.96 : 479,518.19 = 192,434.12 : x
  2. Step 2: Convert to fraction form
    347,493.96/479,518.19 = 192,434.12/x
  3. Step 3: Cross multiply
    347,493.96x = 479,518.19 × 192,434.12
  4. Step 4: Simplify right side
    347,493.96x = 92,275,657,556.88
  5. Step 5: Solve for x
    x = 92,275,657,556.88/347,493.96
  6. Step 6: Final answer
    x = 265,546.08

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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.