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Finding the Fourth Proportional to 491,116.29, 736,679.90 and 136,133.38

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Solution

The fourth proportional to 491,116.29, 736,679.90 and 136,133.38 is: 204,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,116.29 : 736,679.90 = 136,133.38 : x
  2. Step 2: Convert to fraction form
    491,116.29/736,679.90 = 136,133.38/x
  3. Step 3: Cross multiply
    491,116.29x = 736,679.90 × 136,133.38
  4. Step 4: Simplify right side
    491,116.29x = 100,286,724,765.06
  5. Step 5: Solve for x
    x = 100,286,724,765.06/491,116.29
  6. Step 6: Final answer
    x = 204,201.58

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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.