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Finding the Fourth Proportional to 137,230.80, 205,846.20 and 136,064.40

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Solution

The fourth proportional to 137,230.80, 205,846.20 and 136,064.40 is: 204,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,230.80 : 205,846.20 = 136,064.40 : x
  2. Step 2: Convert to fraction form
    137,230.80/205,846.20 = 136,064.40/x
  3. Step 3: Cross multiply
    137,230.80x = 205,846.20 × 136,064.40
  4. Step 4: Simplify right side
    137,230.80x = 28,008,339,695.28
  5. Step 5: Solve for x
    x = 28,008,339,695.28/137,230.80
  6. Step 6: Final answer
    x = 204,096.60

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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.