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Finding the Fourth Proportional to 110,553.40, 165,830.10 and 100,876.60

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Solution

The fourth proportional to 110,553.40, 165,830.10 and 100,876.60 is: 151,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,553.40 : 165,830.10 = 100,876.60 : x
  2. Step 2: Convert to fraction form
    110,553.40/165,830.10 = 100,876.60/x
  3. Step 3: Cross multiply
    110,553.40x = 165,830.10 × 100,876.60
  4. Step 4: Simplify right side
    110,553.40x = 16,728,376,665.66
  5. Step 5: Solve for x
    x = 16,728,376,665.66/110,553.40
  6. Step 6: Final answer
    x = 151,314.90

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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.