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Finding the Fourth Proportional to 165,884.70, 248,859.45 and 66,027.90

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Solution

The fourth proportional to 165,884.70, 248,859.45 and 66,027.90 is: 99,054.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,884.70 : 248,859.45 = 66,027.90 : x
  2. Step 2: Convert to fraction form
    165,884.70/248,859.45 = 66,027.90/x
  3. Step 3: Cross multiply
    165,884.70x = 248,859.45 × 66,027.90
  4. Step 4: Simplify right side
    165,884.70x = 16,431,666,878.66
  5. Step 5: Solve for x
    x = 16,431,666,878.66/165,884.70
  6. Step 6: Final answer
    x = 99,054.75

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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.