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Finding the Fourth Proportional to 221,432,807.90, 332,149,211.85 and 221,432,807.90

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Solution

The fourth proportional to 221,432,807.90, 332,149,211.85 and 221,432,807.90 is: 332,149,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432,807.90 : 332,149,211.85 = 221,432,807.90 : x
  2. Step 2: Convert to fraction form
    221,432,807.90/332,149,211.85 = 221,432,807.90/x
  3. Step 3: Cross multiply
    221,432,807.90x = 332,149,211.85 × 221,432,807.90
  4. Step 4: Simplify right side
    221,432,807.90x = 73,548,732,621,717,456
  5. Step 5: Solve for x
    x = 73,548,732,621,717,456/221,432,807.90
  6. Step 6: Final answer
    x = 332,149,211.85

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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.