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Finding the Fourth Proportional to 108,778.14, 163,169.01 and 29,891.88

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Solution

The fourth proportional to 108,778.14, 163,169.01 and 29,891.88 is: 44,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,778.14 : 163,169.01 = 29,891.88 : x
  2. Step 2: Convert to fraction form
    108,778.14/163,169.01 = 29,891.88/x
  3. Step 3: Cross multiply
    108,778.14x = 163,169.01 × 29,891.88
  4. Step 4: Simplify right side
    108,778.14x = 4,877,428,466.64
  5. Step 5: Solve for x
    x = 4,877,428,466.64/108,778.14
  6. Step 6: Final answer
    x = 44,838.31

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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.