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Finding the Fourth Proportional to 204,788,251.80, 307,182,377.70 and 68,473,635.30

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Solution

The fourth proportional to 204,788,251.80, 307,182,377.70 and 68,473,635.30 is: 102,710,452.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,788,251.80 : 307,182,377.70 = 68,473,635.30 : x
  2. Step 2: Convert to fraction form
    204,788,251.80/307,182,377.70 = 68,473,635.30/x
  3. Step 3: Cross multiply
    204,788,251.80x = 307,182,377.70 × 68,473,635.30
  4. Step 4: Simplify right side
    204,788,251.80x = 21,033,894,101,216,652
  5. Step 5: Solve for x
    x = 21,033,894,101,216,652/204,788,251.80
  6. Step 6: Final answer
    x = 102,710,452.95

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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.