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Finding the Fourth Proportional to 221,427,331.65, 332,140,997.48 and 221,427,331.65

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Solution

The fourth proportional to 221,427,331.65, 332,140,997.48 and 221,427,331.65 is: 332,140,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,427,331.65 : 332,140,997.48 = 221,427,331.65 : x
  2. Step 2: Convert to fraction form
    221,427,331.65/332,140,997.48 = 221,427,331.65/x
  3. Step 3: Cross multiply
    221,427,331.65x = 332,140,997.48 × 221,427,331.65
  4. Step 4: Simplify right side
    221,427,331.65x = 73,545,094,802,458,640
  5. Step 5: Solve for x
    x = 73,545,094,802,458,640/221,427,331.65
  6. Step 6: Final answer
    x = 332,140,997.48

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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.