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Finding the Fourth Proportional to 221,300,099.70, 310,273,635.90 and 221,300,099.70

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Solution

The fourth proportional to 221,300,099.70, 310,273,635.90 and 221,300,099.70 is: 310,273,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,300,099.70 : 310,273,635.90 = 221,300,099.70 : x
  2. Step 2: Convert to fraction form
    221,300,099.70/310,273,635.90 = 221,300,099.70/x
  3. Step 3: Cross multiply
    221,300,099.70x = 310,273,635.90 × 221,300,099.70
  4. Step 4: Simplify right side
    221,300,099.70x = 68,663,586,558,951,488
  5. Step 5: Solve for x
    x = 68,663,586,558,951,488/221,300,099.70
  6. Step 6: Final answer
    x = 310,273,635.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.