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Finding the Fourth Proportional to 366,930.99, 550,447.52 and 130,217.40

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Solution

The fourth proportional to 366,930.99, 550,447.52 and 130,217.40 is: 195,344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,930.99 : 550,447.52 = 130,217.40 : x
  2. Step 2: Convert to fraction form
    366,930.99/550,447.52 = 130,217.40/x
  3. Step 3: Cross multiply
    366,930.99x = 550,447.52 × 130,217.40
  4. Step 4: Simplify right side
    366,930.99x = 71,677,844,239.76
  5. Step 5: Solve for x
    x = 71,677,844,239.76/366,930.99
  6. Step 6: Final answer
    x = 195,344.21

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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.