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Finding the Fourth Proportional to 367,441.69, 550,948.01 and 142,539.32

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Solution

The fourth proportional to 367,441.69, 550,948.01 and 142,539.32 is: 213,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,441.69 : 550,948.01 = 142,539.32 : x
  2. Step 2: Convert to fraction form
    367,441.69/550,948.01 = 142,539.32/x
  3. Step 3: Cross multiply
    367,441.69x = 550,948.01 × 142,539.32
  4. Step 4: Simplify right side
    367,441.69x = 78,531,753,988.06
  5. Step 5: Solve for x
    x = 78,531,753,988.06/367,441.69
  6. Step 6: Final answer
    x = 213,725.76

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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.