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Finding the Fourth Proportional to 217,212.09, 325,861.65 and 75,062.58

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Solution

The fourth proportional to 217,212.09, 325,861.65 and 75,062.58 is: 112,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,212.09 : 325,861.65 = 75,062.58 : x
  2. Step 2: Convert to fraction form
    217,212.09/325,861.65 = 75,062.58/x
  3. Step 3: Cross multiply
    217,212.09x = 325,861.65 × 75,062.58
  4. Step 4: Simplify right side
    217,212.09x = 24,460,016,172.06
  5. Step 5: Solve for x
    x = 24,460,016,172.06/217,212.09
  6. Step 6: Final answer
    x = 112,608.91

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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.