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Finding the Fourth Proportional to 82,038,136.20, 123,057,204.30 and 82,038,136.20

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Solution

The fourth proportional to 82,038,136.20, 123,057,204.30 and 82,038,136.20 is: 123,057,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,038,136.20 : 123,057,204.30 = 82,038,136.20 : x
  2. Step 2: Convert to fraction form
    82,038,136.20/123,057,204.30 = 82,038,136.20/x
  3. Step 3: Cross multiply
    82,038,136.20x = 123,057,204.30 × 82,038,136.20
  4. Step 4: Simplify right side
    82,038,136.20x = 10,095,383,686,754,626
  5. Step 5: Solve for x
    x = 10,095,383,686,754,626/82,038,136.20
  6. Step 6: Final answer
    x = 123,057,204.30

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Similar ratio
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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.