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Finding the Fourth Proportional to 203,742.80, 305,614.20 and 151,254.80

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Solution

The fourth proportional to 203,742.80, 305,614.20 and 151,254.80 is: 226,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,742.80 : 305,614.20 = 151,254.80 : x
  2. Step 2: Convert to fraction form
    203,742.80/305,614.20 = 151,254.80/x
  3. Step 3: Cross multiply
    203,742.80x = 305,614.20 × 151,254.80
  4. Step 4: Simplify right side
    203,742.80x = 46,225,614,698.16
  5. Step 5: Solve for x
    x = 46,225,614,698.16/203,742.80
  6. Step 6: Final answer
    x = 226,882.20

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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.