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Finding the Fourth Proportional to 110,918.76, 166,391.88 and 43,442.04

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Solution

The fourth proportional to 110,918.76, 166,391.88 and 43,442.04 is: 65,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,918.76 : 166,391.88 = 43,442.04 : x
  2. Step 2: Convert to fraction form
    110,918.76/166,391.88 = 43,442.04/x
  3. Step 3: Cross multiply
    110,918.76x = 166,391.88 × 43,442.04
  4. Step 4: Simplify right side
    110,918.76x = 7,228,402,706.64
  5. Step 5: Solve for x
    x = 7,228,402,706.64/110,918.76
  6. Step 6: Final answer
    x = 65,168.44

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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.