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Finding the Fourth Proportional to 347,893.28, 521,932.20 and 111,240.32

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Solution

The fourth proportional to 347,893.28, 521,932.20 and 111,240.32 is: 166,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,893.28 : 521,932.20 = 111,240.32 : x
  2. Step 2: Convert to fraction form
    347,893.28/521,932.20 = 111,240.32/x
  3. Step 3: Cross multiply
    347,893.28x = 521,932.20 × 111,240.32
  4. Step 4: Simplify right side
    347,893.28x = 58,059,904,946.30
  5. Step 5: Solve for x
    x = 58,059,904,946.30/347,893.28
  6. Step 6: Final answer
    x = 166,889.99

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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.