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Finding the Fourth Proportional to 110,872.90, 166,272.90 and 40,743.10

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Solution

The fourth proportional to 110,872.90, 166,272.90 and 40,743.10 is: 61,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,872.90 : 166,272.90 = 40,743.10 : x
  2. Step 2: Convert to fraction form
    110,872.90/166,272.90 = 40,743.10/x
  3. Step 3: Cross multiply
    110,872.90x = 166,272.90 × 40,743.10
  4. Step 4: Simplify right side
    110,872.90x = 6,774,473,391.99
  5. Step 5: Solve for x
    x = 6,774,473,391.99/110,872.90
  6. Step 6: Final answer
    x = 61,101.26

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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.