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Finding the Fourth Proportional to 108,883.89, 163,348.92 and 38,763

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Solution

The fourth proportional to 108,883.89, 163,348.92 and 38,763 is: 58,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,883.89 : 163,348.92 = 38,763 : x
  2. Step 2: Convert to fraction form
    108,883.89/163,348.92 = 38,763/x
  3. Step 3: Cross multiply
    108,883.89x = 163,348.92 × 38,763
  4. Step 4: Simplify right side
    108,883.89x = 6,331,894,185.96
  5. Step 5: Solve for x
    x = 6,331,894,185.96/108,883.89
  6. Step 6: Final answer
    x = 58,152.72

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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.