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Finding the Fourth Proportional to 220,546.98, 330,863.54 and 70,775.75

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Solution

The fourth proportional to 220,546.98, 330,863.54 and 70,775.75 is: 106,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,546.98 : 330,863.54 = 70,775.75 : x
  2. Step 2: Convert to fraction form
    220,546.98/330,863.54 = 70,775.75/x
  3. Step 3: Cross multiply
    220,546.98x = 330,863.54 × 70,775.75
  4. Step 4: Simplify right side
    220,546.98x = 23,417,115,191.16
  5. Step 5: Solve for x
    x = 23,417,115,191.16/220,546.98
  6. Step 6: Final answer
    x = 106,177.45

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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.