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Finding the Fourth Proportional to 74,663.32, 111,939.36 and 35,197.96

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Solution

The fourth proportional to 74,663.32, 111,939.36 and 35,197.96 is: 52,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,663.32 : 111,939.36 = 35,197.96 : x
  2. Step 2: Convert to fraction form
    74,663.32/111,939.36 = 35,197.96/x
  3. Step 3: Cross multiply
    74,663.32x = 111,939.36 × 35,197.96
  4. Step 4: Simplify right side
    74,663.32x = 3,940,037,115.71
  5. Step 5: Solve for x
    x = 3,940,037,115.71/74,663.32
  6. Step 6: Final answer
    x = 52,770.72

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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.