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Finding the Fourth Proportional to 144,820.80, 217,231.20 and 134,323.20

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Solution

The fourth proportional to 144,820.80, 217,231.20 and 134,323.20 is: 201,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,820.80 : 217,231.20 = 134,323.20 : x
  2. Step 2: Convert to fraction form
    144,820.80/217,231.20 = 134,323.20/x
  3. Step 3: Cross multiply
    144,820.80x = 217,231.20 × 134,323.20
  4. Step 4: Simplify right side
    144,820.80x = 29,179,189,923.84
  5. Step 5: Solve for x
    x = 29,179,189,923.84/144,820.80
  6. Step 6: Final answer
    x = 201,484.80

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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.