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Finding the Fourth Proportional to 110,072.97, 165,109.44 and 47,728.89

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Solution

The fourth proportional to 110,072.97, 165,109.44 and 47,728.89 is: 71,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,072.97 : 165,109.44 = 47,728.89 : x
  2. Step 2: Convert to fraction form
    110,072.97/165,109.44 = 47,728.89/x
  3. Step 3: Cross multiply
    110,072.97x = 165,109.44 × 47,728.89
  4. Step 4: Simplify right side
    110,072.97x = 7,880,490,299.72
  5. Step 5: Solve for x
    x = 7,880,490,299.72/110,072.97
  6. Step 6: Final answer
    x = 71,593.33

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1.5x scale

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.