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Finding the Fourth Proportional to 75,119.72, 112,694.72 and 27,735.12

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Solution

The fourth proportional to 75,119.72, 112,694.72 and 27,735.12 is: 41,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,119.72 : 112,694.72 = 27,735.12 : x
  2. Step 2: Convert to fraction form
    75,119.72/112,694.72 = 27,735.12/x
  3. Step 3: Cross multiply
    75,119.72x = 112,694.72 × 27,735.12
  4. Step 4: Simplify right side
    75,119.72x = 3,125,601,582.57
  5. Step 5: Solve for x
    x = 3,125,601,582.57/75,119.72
  6. Step 6: Final answer
    x = 41,608.27

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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.