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Finding the Fourth Proportional to 347,894.68, 521,833.78 and 111,239.42

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Solution

The fourth proportional to 347,894.68, 521,833.78 and 111,239.42 is: 166,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,894.68 : 521,833.78 = 111,239.42 : x
  2. Step 2: Convert to fraction form
    347,894.68/521,833.78 = 111,239.42/x
  3. Step 3: Cross multiply
    347,894.68x = 521,833.78 × 111,239.42
  4. Step 4: Simplify right side
    347,894.68x = 58,048,487,023.61
  5. Step 5: Solve for x
    x = 58,048,487,023.61/347,894.68
  6. Step 6: Final answer
    x = 166,856.50

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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.