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Finding the Fourth Proportional to 326,297.06, 488,866.24 and 136,339.25

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Solution

The fourth proportional to 326,297.06, 488,866.24 and 136,339.25 is: 204,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,297.06 : 488,866.24 = 136,339.25 : x
  2. Step 2: Convert to fraction form
    326,297.06/488,866.24 = 136,339.25/x
  3. Step 3: Cross multiply
    326,297.06x = 488,866.24 × 136,339.25
  4. Step 4: Simplify right side
    326,297.06x = 66,651,656,220.98
  5. Step 5: Solve for x
    x = 66,651,656,220.98/326,297.06
  6. Step 6: Final answer
    x = 204,266.80

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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.