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Finding the Fourth Proportional to 217,958.49, 327,064.10 and 91,588.77

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Solution

The fourth proportional to 217,958.49, 327,064.10 and 91,588.77 is: 137,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,958.49 : 327,064.10 = 91,588.77 : x
  2. Step 2: Convert to fraction form
    217,958.49/327,064.10 = 91,588.77/x
  3. Step 3: Cross multiply
    217,958.49x = 327,064.10 × 91,588.77
  4. Step 4: Simplify right side
    217,958.49x = 29,955,398,172.21
  5. Step 5: Solve for x
    x = 29,955,398,172.21/217,958.49
  6. Step 6: Final answer
    x = 137,436.25

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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.