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Finding the Fourth Proportional to 355,169.30, 532,964.14 and 130,687.37

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Solution

The fourth proportional to 355,169.30, 532,964.14 and 130,687.37 is: 196,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,169.30 : 532,964.14 = 130,687.37 : x
  2. Step 2: Convert to fraction form
    355,169.30/532,964.14 = 130,687.37/x
  3. Step 3: Cross multiply
    355,169.30x = 532,964.14 × 130,687.37
  4. Step 4: Simplify right side
    355,169.30x = 69,651,682,766.60
  5. Step 5: Solve for x
    x = 69,651,682,766.60/355,169.30
  6. Step 6: Final answer
    x = 196,108.40

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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.