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Finding the Fourth Proportional to 70,699.12, 106,048.70 and 33,231.68

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Solution

The fourth proportional to 70,699.12, 106,048.70 and 33,231.68 is: 49,847.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,699.12 : 106,048.70 = 33,231.68 : x
  2. Step 2: Convert to fraction form
    70,699.12/106,048.70 = 33,231.68/x
  3. Step 3: Cross multiply
    70,699.12x = 106,048.70 × 33,231.68
  4. Step 4: Simplify right side
    70,699.12x = 3,524,176,462.82
  5. Step 5: Solve for x
    x = 3,524,176,462.82/70,699.12
  6. Step 6: Final answer
    x = 49,847.53

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Similar ratio
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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.