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Finding the Fourth Proportional to 404,691, 606,893.96 and 134,745.80

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Solution

The fourth proportional to 404,691, 606,893.96 and 134,745.80 is: 202,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,691 : 606,893.96 = 134,745.80 : x
  2. Step 2: Convert to fraction form
    404,691/606,893.96 = 134,745.80/x
  3. Step 3: Cross multiply
    404,691x = 606,893.96 × 134,745.80
  4. Step 4: Simplify right side
    404,691x = 81,776,412,155.37
  5. Step 5: Solve for x
    x = 81,776,412,155.37/404,691
  6. Step 6: Final answer
    x = 202,071.24

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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.