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Finding the Fourth Proportional to 110,731, 166,162.92 and 40,617.40

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Solution

The fourth proportional to 110,731, 166,162.92 and 40,617.40 is: 60,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,731 : 166,162.92 = 40,617.40 : x
  2. Step 2: Convert to fraction form
    110,731/166,162.92 = 40,617.40/x
  3. Step 3: Cross multiply
    110,731x = 166,162.92 × 40,617.40
  4. Step 4: Simplify right side
    110,731x = 6,749,105,786.81
  5. Step 5: Solve for x
    x = 6,749,105,786.81/110,731
  6. Step 6: Final answer
    x = 60,950.46

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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.