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Finding the Fourth Proportional to 216,841.33, 325,123.21 and 104,297.43

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Solution

The fourth proportional to 216,841.33, 325,123.21 and 104,297.43 is: 156,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,841.33 : 325,123.21 = 104,297.43 : x
  2. Step 2: Convert to fraction form
    216,841.33/325,123.21 = 104,297.43/x
  3. Step 3: Cross multiply
    216,841.33x = 325,123.21 × 104,297.43
  4. Step 4: Simplify right side
    216,841.33x = 33,909,515,236.35
  5. Step 5: Solve for x
    x = 33,909,515,236.35/216,841.33
  6. Step 6: Final answer
    x = 156,379.39

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1.5x scale

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.