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Finding the Fourth Proportional to 231,886.98, 347,846.67 and 74,128.14

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Solution

The fourth proportional to 231,886.98, 347,846.67 and 74,128.14 is: 111,197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,886.98 : 347,846.67 = 74,128.14 : x
  2. Step 2: Convert to fraction form
    231,886.98/347,846.67 = 74,128.14/x
  3. Step 3: Cross multiply
    231,886.98x = 347,846.67 × 74,128.14
  4. Step 4: Simplify right side
    231,886.98x = 25,785,226,652.29
  5. Step 5: Solve for x
    x = 25,785,226,652.29/231,886.98
  6. Step 6: Final answer
    x = 111,197.39

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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.