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Finding the Fourth Proportional to 79,279,252.80, 118,883,449.80 and 30,740,974.80

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Solution

The fourth proportional to 79,279,252.80, 118,883,449.80 and 30,740,974.80 is: 46,097,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,279,252.80 : 118,883,449.80 = 30,740,974.80 : x
  2. Step 2: Convert to fraction form
    79,279,252.80/118,883,449.80 = 30,740,974.80/x
  3. Step 3: Cross multiply
    79,279,252.80x = 118,883,449.80 × 30,740,974.80
  4. Step 4: Simplify right side
    79,279,252.80x = 3,654,593,134,438,865
  5. Step 5: Solve for x
    x = 3,654,593,134,438,865/79,279,252.80
  6. Step 6: Final answer
    x = 46,097,724.25

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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.