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Finding the Fourth Proportional to 220,052,431.20, 330,078,646.80 and 220,052,431.20

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Solution

The fourth proportional to 220,052,431.20, 330,078,646.80 and 220,052,431.20 is: 330,078,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,052,431.20 : 330,078,646.80 = 220,052,431.20 : x
  2. Step 2: Convert to fraction form
    220,052,431.20/330,078,646.80 = 220,052,431.20/x
  3. Step 3: Cross multiply
    220,052,431.20x = 330,078,646.80 × 220,052,431.20
  4. Step 4: Simplify right side
    220,052,431.20x = 72,634,608,715,546,096
  5. Step 5: Solve for x
    x = 72,634,608,715,546,096/220,052,431.20
  6. Step 6: Final answer
    x = 330,078,646.80

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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.