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Finding the Fourth Proportional to 220,754.34, 331,100.40 and 70,975.59

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Solution

The fourth proportional to 220,754.34, 331,100.40 and 70,975.59 is: 106,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,754.34 : 331,100.40 = 70,975.59 : x
  2. Step 2: Convert to fraction form
    220,754.34/331,100.40 = 70,975.59/x
  3. Step 3: Cross multiply
    220,754.34x = 331,100.40 × 70,975.59
  4. Step 4: Simplify right side
    220,754.34x = 23,500,046,239.24
  5. Step 5: Solve for x
    x = 23,500,046,239.24/220,754.34
  6. Step 6: Final answer
    x = 106,453.38

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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.