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Finding the Fourth Proportional to 221,264.70, 331,898.98 and 71,504.96

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Solution

The fourth proportional to 221,264.70, 331,898.98 and 71,504.96 is: 107,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,264.70 : 331,898.98 = 71,504.96 : x
  2. Step 2: Convert to fraction form
    221,264.70/331,898.98 = 71,504.96/x
  3. Step 3: Cross multiply
    221,264.70x = 331,898.98 × 71,504.96
  4. Step 4: Simplify right side
    221,264.70x = 23,732,423,288.94
  5. Step 5: Solve for x
    x = 23,732,423,288.94/221,264.70
  6. Step 6: Final answer
    x = 107,258.06

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1.5x scale

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.