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Finding the Fourth Proportional to 133,585,972.80, 200,378,959.20 and 133,585,972.80

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Solution

The fourth proportional to 133,585,972.80, 200,378,959.20 and 133,585,972.80 is: 200,378,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,585,972.80 : 200,378,959.20 = 133,585,972.80 : x
  2. Step 2: Convert to fraction form
    133,585,972.80/200,378,959.20 = 133,585,972.80/x
  3. Step 3: Cross multiply
    133,585,972.80x = 200,378,959.20 × 133,585,972.80
  4. Step 4: Simplify right side
    133,585,972.80x = 26,767,818,193,383,508
  5. Step 5: Solve for x
    x = 26,767,818,193,383,508/133,585,972.80
  6. Step 6: Final answer
    x = 200,378,959.20

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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.