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Finding the Fourth Proportional to 158,936,165.20, 238,404,247.80 and 158,936,165.20

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Solution

The fourth proportional to 158,936,165.20, 238,404,247.80 and 158,936,165.20 is: 238,404,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,936,165.20 : 238,404,247.80 = 158,936,165.20 : x
  2. Step 2: Convert to fraction form
    158,936,165.20/238,404,247.80 = 158,936,165.20/x
  3. Step 3: Cross multiply
    158,936,165.20x = 238,404,247.80 × 158,936,165.20
  4. Step 4: Simplify right side
    158,936,165.20x = 37,891,056,912,722,536
  5. Step 5: Solve for x
    x = 37,891,056,912,722,536/158,936,165.20
  6. Step 6: Final answer
    x = 238,404,247.80

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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.