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Finding the Fourth Proportional to 491,421.73, 737,050.38 and 136,471.63

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Solution

The fourth proportional to 491,421.73, 737,050.38 and 136,471.63 is: 204,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,421.73 : 737,050.38 = 136,471.63 : x
  2. Step 2: Convert to fraction form
    491,421.73/737,050.38 = 136,471.63/x
  3. Step 3: Cross multiply
    491,421.73x = 737,050.38 × 136,471.63
  4. Step 4: Simplify right side
    491,421.73x = 100,586,466,750.72
  5. Step 5: Solve for x
    x = 100,586,466,750.72/491,421.73
  6. Step 6: Final answer
    x = 204,684.61

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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.