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Finding the Fourth Proportional to 219,897,753.70, 329,846,630.55 and 214,858,905.70

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Solution

The fourth proportional to 219,897,753.70, 329,846,630.55 and 214,858,905.70 is: 322,288,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,897,753.70 : 329,846,630.55 = 214,858,905.70 : x
  2. Step 2: Convert to fraction form
    219,897,753.70/329,846,630.55 = 214,858,905.70/x
  3. Step 3: Cross multiply
    219,897,753.70x = 329,846,630.55 × 214,858,905.70
  4. Step 4: Simplify right side
    219,897,753.70x = 70,870,486,088,805,184
  5. Step 5: Solve for x
    x = 70,870,486,088,805,184/219,897,753.70
  6. Step 6: Final answer
    x = 322,288,358.55

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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.