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Finding the Fourth Proportional to 218,109.77, 327,222.97 and 197,289.53

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Solution

The fourth proportional to 218,109.77, 327,222.97 and 197,289.53 is: 295,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,109.77 : 327,222.97 = 197,289.53 : x
  2. Step 2: Convert to fraction form
    218,109.77/327,222.97 = 197,289.53/x
  3. Step 3: Cross multiply
    218,109.77x = 327,222.97 × 197,289.53
  4. Step 4: Simplify right side
    218,109.77x = 64,557,665,956.50
  5. Step 5: Solve for x
    x = 64,557,665,956.50/218,109.77
  6. Step 6: Final answer
    x = 295,987.04

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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.