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Finding the Fourth Proportional to 347,718,658.80, 521,640,973.80 and 174,760,201.20

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Solution

The fourth proportional to 347,718,658.80, 521,640,973.80 and 174,760,201.20 is: 262,171,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,718,658.80 : 521,640,973.80 = 174,760,201.20 : x
  2. Step 2: Convert to fraction form
    347,718,658.80/521,640,973.80 = 174,760,201.20/x
  3. Step 3: Cross multiply
    347,718,658.80x = 521,640,973.80 × 174,760,201.20
  4. Step 4: Simplify right side
    347,718,658.80x = 91,162,081,535,451,920
  5. Step 5: Solve for x
    x = 91,162,081,535,451,920/347,718,658.80
  6. Step 6: Final answer
    x = 262,171,957.78

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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.