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Finding the Fourth Proportional to 239,213.52, 358,695.70 and 112,819.82

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Solution

The fourth proportional to 239,213.52, 358,695.70 and 112,819.82 is: 169,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,213.52 : 358,695.70 = 112,819.82 : x
  2. Step 2: Convert to fraction form
    239,213.52/358,695.70 = 112,819.82/x
  3. Step 3: Cross multiply
    239,213.52x = 358,695.70 × 112,819.82
  4. Step 4: Simplify right side
    239,213.52x = 40,467,984,308.77
  5. Step 5: Solve for x
    x = 40,467,984,308.77/239,213.52
  6. Step 6: Final answer
    x = 169,170.97

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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.