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Finding the Fourth Proportional to 110,520.78, 165,807.08 and 43,964.70

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Solution

The fourth proportional to 110,520.78, 165,807.08 and 43,964.70 is: 65,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,520.78 : 165,807.08 = 43,964.70 : x
  2. Step 2: Convert to fraction form
    110,520.78/165,807.08 = 43,964.70/x
  3. Step 3: Cross multiply
    110,520.78x = 165,807.08 × 43,964.70
  4. Step 4: Simplify right side
    110,520.78x = 7,289,658,530.08
  5. Step 5: Solve for x
    x = 7,289,658,530.08/110,520.78
  6. Step 6: Final answer
    x = 65,957.36

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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.