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Finding the Fourth Proportional to 169,739.20, 254,608.80 and 110,690.20

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Solution

The fourth proportional to 169,739.20, 254,608.80 and 110,690.20 is: 166,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,739.20 : 254,608.80 = 110,690.20 : x
  2. Step 2: Convert to fraction form
    169,739.20/254,608.80 = 110,690.20/x
  3. Step 3: Cross multiply
    169,739.20x = 254,608.80 × 110,690.20
  4. Step 4: Simplify right side
    169,739.20x = 28,182,698,993.76
  5. Step 5: Solve for x
    x = 28,182,698,993.76/169,739.20
  6. Step 6: Final answer
    x = 166,035.30

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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.