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Finding the Fourth Proportional to 217,523.80, 325,853.70 and 191,546.20

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Solution

The fourth proportional to 217,523.80, 325,853.70 and 191,546.20 is: 286,938.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,523.80 : 325,853.70 = 191,546.20 : x
  2. Step 2: Convert to fraction form
    217,523.80/325,853.70 = 191,546.20/x
  3. Step 3: Cross multiply
    217,523.80x = 325,853.70 × 191,546.20
  4. Step 4: Simplify right side
    217,523.80x = 62,416,037,990.94
  5. Step 5: Solve for x
    x = 62,416,037,990.94/217,523.80
  6. Step 6: Final answer
    x = 286,938.89

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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.