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Finding the Fourth Proportional to 367,076.80, 550,815.81 and 142,446.12

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Solution

The fourth proportional to 367,076.80, 550,815.81 and 142,446.12 is: 213,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,076.80 : 550,815.81 = 142,446.12 : x
  2. Step 2: Convert to fraction form
    367,076.80/550,815.81 = 142,446.12/x
  3. Step 3: Cross multiply
    367,076.80x = 550,815.81 × 142,446.12
  4. Step 4: Simplify right side
    367,076.80x = 78,461,574,969.16
  5. Step 5: Solve for x
    x = 78,461,574,969.16/367,076.80
  6. Step 6: Final answer
    x = 213,747.03

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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.