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Finding the Fourth Proportional to 108,799.78, 163,165.11 and 34,910.50

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Solution

The fourth proportional to 108,799.78, 163,165.11 and 34,910.50 is: 52,354.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,799.78 : 163,165.11 = 34,910.50 : x
  2. Step 2: Convert to fraction form
    108,799.78/163,165.11 = 34,910.50/x
  3. Step 3: Cross multiply
    108,799.78x = 163,165.11 × 34,910.50
  4. Step 4: Simplify right side
    108,799.78x = 5,696,175,572.66
  5. Step 5: Solve for x
    x = 5,696,175,572.66/108,799.78
  6. Step 6: Final answer
    x = 52,354.66

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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.