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Finding the Fourth Proportional to 108,874.60, 163,269.78 and 42,305.97

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Solution

The fourth proportional to 108,874.60, 163,269.78 and 42,305.97 is: 63,442.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,874.60 : 163,269.78 = 42,305.97 : x
  2. Step 2: Convert to fraction form
    108,874.60/163,269.78 = 42,305.97/x
  3. Step 3: Cross multiply
    108,874.60x = 163,269.78 × 42,305.97
  4. Step 4: Simplify right side
    108,874.60x = 6,907,285,598.24
  5. Step 5: Solve for x
    x = 6,907,285,598.24/108,874.60
  6. Step 6: Final answer
    x = 63,442.58

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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.