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Finding the Fourth Proportional to 367,098.20, 550,647.30 and 130,707.80

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Solution

The fourth proportional to 367,098.20, 550,647.30 and 130,707.80 is: 196,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,098.20 : 550,647.30 = 130,707.80 : x
  2. Step 2: Convert to fraction form
    367,098.20/550,647.30 = 130,707.80/x
  3. Step 3: Cross multiply
    367,098.20x = 550,647.30 × 130,707.80
  4. Step 4: Simplify right side
    367,098.20x = 71,973,897,158.94
  5. Step 5: Solve for x
    x = 71,973,897,158.94/367,098.20
  6. Step 6: Final answer
    x = 196,061.70

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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.