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Finding the Fourth Proportional to 220,488.80, 330,732.56 and 60,564.89

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Solution

The fourth proportional to 220,488.80, 330,732.56 and 60,564.89 is: 90,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,488.80 : 330,732.56 = 60,564.89 : x
  2. Step 2: Convert to fraction form
    220,488.80/330,732.56 = 60,564.89/x
  3. Step 3: Cross multiply
    220,488.80x = 330,732.56 × 60,564.89
  4. Step 4: Simplify right side
    220,488.80x = 20,030,780,399.58
  5. Step 5: Solve for x
    x = 20,030,780,399.58/220,488.80
  6. Step 6: Final answer
    x = 90,847.16

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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.