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Finding the Fourth Proportional to 228,299.26, 315,079.60 and 132,809.98

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Solution

The fourth proportional to 228,299.26, 315,079.60 and 132,809.98 is: 183,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,299.26 : 315,079.60 = 132,809.98 : x
  2. Step 2: Convert to fraction form
    228,299.26/315,079.60 = 132,809.98/x
  3. Step 3: Cross multiply
    228,299.26x = 315,079.60 × 132,809.98
  4. Step 4: Simplify right side
    228,299.26x = 41,845,715,374.41
  5. Step 5: Solve for x
    x = 41,845,715,374.41/228,299.26
  6. Step 6: Final answer
    x = 183,293.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.