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Finding the Fourth Proportional to 169,638.60, 254,166.30 and 110,443.80

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Solution

The fourth proportional to 169,638.60, 254,166.30 and 110,443.80 is: 165,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638.60 : 254,166.30 = 110,443.80 : x
  2. Step 2: Convert to fraction form
    169,638.60/254,166.30 = 110,443.80/x
  3. Step 3: Cross multiply
    169,638.60x = 254,166.30 × 110,443.80
  4. Step 4: Simplify right side
    169,638.60x = 28,071,092,003.94
  5. Step 5: Solve for x
    x = 28,071,092,003.94/169,638.60
  6. Step 6: Final answer
    x = 165,475.85

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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.