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Finding the Fourth Proportional to 74,328,763.20, 111,493,144.80 and 74,328,763.20

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Solution

The fourth proportional to 74,328,763.20, 111,493,144.80 and 74,328,763.20 is: 111,493,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328,763.20 : 111,493,144.80 = 74,328,763.20 : x
  2. Step 2: Convert to fraction form
    74,328,763.20/111,493,144.80 = 74,328,763.20/x
  3. Step 3: Cross multiply
    74,328,763.20x = 111,493,144.80 × 74,328,763.20
  4. Step 4: Simplify right side
    74,328,763.20x = 8,287,147,558,262,511
  5. Step 5: Solve for x
    x = 8,287,147,558,262,511/74,328,763.20
  6. Step 6: Final answer
    x = 111,493,144.80

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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.