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Finding the Fourth Proportional to 462,760.66, 694,197.16 and 130,336.66

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Solution

The fourth proportional to 462,760.66, 694,197.16 and 130,336.66 is: 195,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,760.66 : 694,197.16 = 130,336.66 : x
  2. Step 2: Convert to fraction form
    462,760.66/694,197.16 = 130,336.66/x
  3. Step 3: Cross multiply
    462,760.66x = 694,197.16 × 130,336.66
  4. Step 4: Simplify right side
    462,760.66x = 90,479,339,215.89
  5. Step 5: Solve for x
    x = 90,479,339,215.89/462,760.66
  6. Step 6: Final answer
    x = 195,520.81

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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.