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Finding the Fourth Proportional to 217,597,951.80, 326,396,927.70 and 204,832,870.20

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Solution

The fourth proportional to 217,597,951.80, 326,396,927.70 and 204,832,870.20 is: 307,249,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,597,951.80 : 326,396,927.70 = 204,832,870.20 : x
  2. Step 2: Convert to fraction form
    217,597,951.80/326,396,927.70 = 204,832,870.20/x
  3. Step 3: Cross multiply
    217,597,951.80x = 326,396,927.70 × 204,832,870.20
  4. Step 4: Simplify right side
    217,597,951.80x = 66,856,819,525,252,880
  5. Step 5: Solve for x
    x = 66,856,819,525,252,880/217,597,951.80
  6. Step 6: Final answer
    x = 307,249,305.30

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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.