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Finding the Fourth Proportional to 70,161.68, 105,169.01 and 32,690.85

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Solution

The fourth proportional to 70,161.68, 105,169.01 and 32,690.85 is: 49,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.68 : 105,169.01 = 32,690.85 : x
  2. Step 2: Convert to fraction form
    70,161.68/105,169.01 = 32,690.85/x
  3. Step 3: Cross multiply
    70,161.68x = 105,169.01 × 32,690.85
  4. Step 4: Simplify right side
    70,161.68x = 3,438,064,167.10
  5. Step 5: Solve for x
    x = 3,438,064,167.10/70,161.68
  6. Step 6: Final answer
    x = 49,002.03

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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.