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Finding the Fourth Proportional to 491,799.61, 737,700.73 and 136,813.67

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Solution

The fourth proportional to 491,799.61, 737,700.73 and 136,813.67 is: 205,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,799.61 : 737,700.73 = 136,813.67 : x
  2. Step 2: Convert to fraction form
    491,799.61/737,700.73 = 136,813.67/x
  3. Step 3: Cross multiply
    491,799.61x = 737,700.73 × 136,813.67
  4. Step 4: Simplify right side
    491,799.61x = 100,927,543,481.87
  5. Step 5: Solve for x
    x = 100,927,543,481.87/491,799.61
  6. Step 6: Final answer
    x = 205,220.87

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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.