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Finding the Fourth Proportional to 110,666.30, 165,801.45 and 67,310.30

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Solution

The fourth proportional to 110,666.30, 165,801.45 and 67,310.30 is: 100,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,666.30 : 165,801.45 = 67,310.30 : x
  2. Step 2: Convert to fraction form
    110,666.30/165,801.45 = 67,310.30/x
  3. Step 3: Cross multiply
    110,666.30x = 165,801.45 × 67,310.30
  4. Step 4: Simplify right side
    110,666.30x = 11,160,145,339.94
  5. Step 5: Solve for x
    x = 11,160,145,339.94/110,666.30
  6. Step 6: Final answer
    x = 100,845.02

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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.