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Finding the Fourth Proportional to 491,060.61, 736,588.83 and 136,073.61

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Solution

The fourth proportional to 491,060.61, 736,588.83 and 136,073.61 is: 204,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,060.61 : 736,588.83 = 136,073.61 : x
  2. Step 2: Convert to fraction form
    491,060.61/736,588.83 = 136,073.61/x
  3. Step 3: Cross multiply
    491,060.61x = 736,588.83 × 136,073.61
  4. Step 4: Simplify right side
    491,060.61x = 100,230,301,183.78
  5. Step 5: Solve for x
    x = 100,230,301,183.78/491,060.61
  6. Step 6: Final answer
    x = 204,109.84

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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.