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Finding the Fourth Proportional to 234,858,085.20, 352,287,127.80 and 234,858,085.20

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Solution

The fourth proportional to 234,858,085.20, 352,287,127.80 and 234,858,085.20 is: 352,287,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,858,085.20 : 352,287,127.80 = 234,858,085.20 : x
  2. Step 2: Convert to fraction form
    234,858,085.20/352,287,127.80 = 234,858,085.20/x
  3. Step 3: Cross multiply
    234,858,085.20x = 352,287,127.80 × 234,858,085.20
  4. Step 4: Simplify right side
    234,858,085.20x = 82,737,480,275,715,680
  5. Step 5: Solve for x
    x = 82,737,480,275,715,680/234,858,085.20
  6. Step 6: Final answer
    x = 352,287,127.80

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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.