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Finding the Fourth Proportional to 108,906.66, 163,379.03 and 49,748.31

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Solution

The fourth proportional to 108,906.66, 163,379.03 and 49,748.31 is: 74,631.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,906.66 : 163,379.03 = 49,748.31 : x
  2. Step 2: Convert to fraction form
    108,906.66/163,379.03 = 49,748.31/x
  3. Step 3: Cross multiply
    108,906.66x = 163,379.03 × 49,748.31
  4. Step 4: Simplify right side
    108,906.66x = 8,127,830,383.20
  5. Step 5: Solve for x
    x = 8,127,830,383.20/108,906.66
  6. Step 6: Final answer
    x = 74,631.16

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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.