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Finding the Fourth Proportional to 221,098.83, 331,646.99 and 63,327.33

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Solution

The fourth proportional to 221,098.83, 331,646.99 and 63,327.33 is: 94,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,098.83 : 331,646.99 = 63,327.33 : x
  2. Step 2: Convert to fraction form
    221,098.83/331,646.99 = 63,327.33/x
  3. Step 3: Cross multiply
    221,098.83x = 331,646.99 × 63,327.33
  4. Step 4: Simplify right side
    221,098.83x = 21,002,318,062.60
  5. Step 5: Solve for x
    x = 21,002,318,062.60/221,098.83
  6. Step 6: Final answer
    x = 94,990.63

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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.