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Finding the Fourth Proportional to 82,327,996.70, 123,491,995.05 and 21,743,722.70

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Solution

The fourth proportional to 82,327,996.70, 123,491,995.05 and 21,743,722.70 is: 32,615,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,327,996.70 : 123,491,995.05 = 21,743,722.70 : x
  2. Step 2: Convert to fraction form
    82,327,996.70/123,491,995.05 = 21,743,722.70/x
  3. Step 3: Cross multiply
    82,327,996.70x = 123,491,995.05 × 21,743,722.70
  4. Step 4: Simplify right side
    82,327,996.70x = 2,685,175,696,036,972.50
  5. Step 5: Solve for x
    x = 2,685,175,696,036,972.50/82,327,996.70
  6. Step 6: Final answer
    x = 32,615,584.05

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Double scale
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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.