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Finding the Fourth Proportional to 104,108.76, 156,164.45 and 36,642.83

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Solution

The fourth proportional to 104,108.76, 156,164.45 and 36,642.83 is: 54,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,108.76 : 156,164.45 = 36,642.83 : x
  2. Step 2: Convert to fraction form
    104,108.76/156,164.45 = 36,642.83/x
  3. Step 3: Cross multiply
    104,108.76x = 156,164.45 × 36,642.83
  4. Step 4: Simplify right side
    104,108.76x = 5,722,306,429.36
  5. Step 5: Solve for x
    x = 5,722,306,429.36/104,108.76
  6. Step 6: Final answer
    x = 54,964.70

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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.