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Finding the Fourth Proportional to 368,727.60, 552,832.20 and 144,001.20

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Solution

The fourth proportional to 368,727.60, 552,832.20 and 144,001.20 is: 215,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,727.60 : 552,832.20 = 144,001.20 : x
  2. Step 2: Convert to fraction form
    368,727.60/552,832.20 = 144,001.20/x
  3. Step 3: Cross multiply
    368,727.60x = 552,832.20 × 144,001.20
  4. Step 4: Simplify right side
    368,727.60x = 79,608,500,198.64
  5. Step 5: Solve for x
    x = 79,608,500,198.64/368,727.60
  6. Step 6: Final answer
    x = 215,900.57

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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.