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Finding the Fourth Proportional to 136,730.62, 205,110.24 and 36,891.64

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Solution

The fourth proportional to 136,730.62, 205,110.24 and 36,891.64 is: 55,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,730.62 : 205,110.24 = 36,891.64 : x
  2. Step 2: Convert to fraction form
    136,730.62/205,110.24 = 36,891.64/x
  3. Step 3: Cross multiply
    136,730.62x = 205,110.24 × 36,891.64
  4. Step 4: Simplify right side
    136,730.62x = 7,566,853,134.39
  5. Step 5: Solve for x
    x = 7,566,853,134.39/136,730.62
  6. Step 6: Final answer
    x = 55,341.32

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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.