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Finding the Fourth Proportional to 104,730.62, 156,833.48 and 82,663.79

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Solution

The fourth proportional to 104,730.62, 156,833.48 and 82,663.79 is: 123,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,730.62 : 156,833.48 = 82,663.79 : x
  2. Step 2: Convert to fraction form
    104,730.62/156,833.48 = 82,663.79/x
  3. Step 3: Cross multiply
    104,730.62x = 156,833.48 × 82,663.79
  4. Step 4: Simplify right side
    104,730.62x = 12,964,448,658.20
  5. Step 5: Solve for x
    x = 12,964,448,658.20/104,730.62
  6. Step 6: Final answer
    x = 123,788.53

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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.