Home / 165,923.20-248,884.80-55,115.20

Finding the Fourth Proportional to 165,923.20, 248,884.80 and 55,115.20

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Solution

The fourth proportional to 165,923.20, 248,884.80 and 55,115.20 is: 82,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,923.20 : 248,884.80 = 55,115.20 : x
  2. Step 2: Convert to fraction form
    165,923.20/248,884.80 = 55,115.20/x
  3. Step 3: Cross multiply
    165,923.20x = 248,884.80 × 55,115.20
  4. Step 4: Simplify right side
    165,923.20x = 13,717,335,528.96
  5. Step 5: Solve for x
    x = 13,717,335,528.96/165,923.20
  6. Step 6: Final answer
    x = 82,672.80

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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.