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Finding the Fourth Proportional to 291,398.96, 437,168.39 and 111,481.41

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Solution

The fourth proportional to 291,398.96, 437,168.39 and 111,481.41 is: 167,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,398.96 : 437,168.39 = 111,481.41 : x
  2. Step 2: Convert to fraction form
    291,398.96/437,168.39 = 111,481.41/x
  3. Step 3: Cross multiply
    291,398.96x = 437,168.39 × 111,481.41
  4. Step 4: Simplify right side
    291,398.96x = 48,736,147,967.22
  5. Step 5: Solve for x
    x = 48,736,147,967.22/291,398.96
  6. Step 6: Final answer
    x = 167,248.88

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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.