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Finding the Fourth Proportional to 367,559.16, 551,079.52 and 142,732.32

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Solution

The fourth proportional to 367,559.16, 551,079.52 and 142,732.32 is: 213,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,559.16 : 551,079.52 = 142,732.32 : x
  2. Step 2: Convert to fraction form
    367,559.16/551,079.52 = 142,732.32/x
  3. Step 3: Cross multiply
    367,559.16x = 551,079.52 × 142,732.32
  4. Step 4: Simplify right side
    367,559.16x = 78,656,858,394.09
  5. Step 5: Solve for x
    x = 78,656,858,394.09/367,559.16
  6. Step 6: Final answer
    x = 213,997.82

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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.