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Finding the Fourth Proportional to 491,126.32, 736,616.56 and 136,103.32

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Solution

The fourth proportional to 491,126.32, 736,616.56 and 136,103.32 is: 204,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,126.32 : 736,616.56 = 136,103.32 : x
  2. Step 2: Convert to fraction form
    491,126.32/736,616.56 = 136,103.32/x
  3. Step 3: Cross multiply
    491,126.32x = 736,616.56 × 136,103.32
  4. Step 4: Simplify right side
    491,126.32x = 100,255,959,382.98
  5. Step 5: Solve for x
    x = 100,255,959,382.98/491,126.32
  6. Step 6: Final answer
    x = 204,134.77

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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.