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Finding the Fourth Proportional to 110,564.70, 165,845.52 and 66,203.70

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Solution

The fourth proportional to 110,564.70, 165,845.52 and 66,203.70 is: 99,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,564.70 : 165,845.52 = 66,203.70 : x
  2. Step 2: Convert to fraction form
    110,564.70/165,845.52 = 66,203.70/x
  3. Step 3: Cross multiply
    110,564.70x = 165,845.52 × 66,203.70
  4. Step 4: Simplify right side
    110,564.70x = 10,979,587,052.42
  5. Step 5: Solve for x
    x = 10,979,587,052.42/110,564.70
  6. Step 6: Final answer
    x = 99,304.63

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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.