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Finding the Fourth Proportional to 220,542,992.40, 330,814,488.60 and 220,542,992.40

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Solution

The fourth proportional to 220,542,992.40, 330,814,488.60 and 220,542,992.40 is: 330,814,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,542,992.40 : 330,814,488.60 = 220,542,992.40 : x
  2. Step 2: Convert to fraction form
    220,542,992.40/330,814,488.60 = 220,542,992.40/x
  3. Step 3: Cross multiply
    220,542,992.40x = 330,814,488.60 × 220,542,992.40
  4. Step 4: Simplify right side
    220,542,992.40x = 72,958,817,245,119,696
  5. Step 5: Solve for x
    x = 72,958,817,245,119,696/220,542,992.40
  6. Step 6: Final answer
    x = 330,814,488.60

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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.