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Finding the Fourth Proportional to 367,322.40, 550,983.60 and 130,672.80

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Solution

The fourth proportional to 367,322.40, 550,983.60 and 130,672.80 is: 196,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,322.40 : 550,983.60 = 130,672.80 : x
  2. Step 2: Convert to fraction form
    367,322.40/550,983.60 = 130,672.80/x
  3. Step 3: Cross multiply
    367,322.40x = 550,983.60 × 130,672.80
  4. Step 4: Simplify right side
    367,322.40x = 71,998,569,766.08
  5. Step 5: Solve for x
    x = 71,998,569,766.08/367,322.40
  6. Step 6: Final answer
    x = 196,009.20

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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.