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Finding the Fourth Proportional to 338,404.97, 507,671.50 and 136,016.82

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Solution

The fourth proportional to 338,404.97, 507,671.50 and 136,016.82 is: 204,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,404.97 : 507,671.50 = 136,016.82 : x
  2. Step 2: Convert to fraction form
    338,404.97/507,671.50 = 136,016.82/x
  3. Step 3: Cross multiply
    338,404.97x = 507,671.50 × 136,016.82
  4. Step 4: Simplify right side
    338,404.97x = 69,051,862,949.62
  5. Step 5: Solve for x
    x = 69,051,862,949.62/338,404.97
  6. Step 6: Final answer
    x = 204,050.97

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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.