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Finding the Fourth Proportional to 217,599.58, 326,333.76 and 84,450.16

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Solution

The fourth proportional to 217,599.58, 326,333.76 and 84,450.16 is: 126,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,599.58 : 326,333.76 = 84,450.16 : x
  2. Step 2: Convert to fraction form
    217,599.58/326,333.76 = 84,450.16/x
  3. Step 3: Cross multiply
    217,599.58x = 326,333.76 × 84,450.16
  4. Step 4: Simplify right side
    217,599.58x = 27,558,938,245.40
  5. Step 5: Solve for x
    x = 27,558,938,245.40/217,599.58
  6. Step 6: Final answer
    x = 126,649.78

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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.