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Finding the Fourth Proportional to 113,054.64, 156,042.92 and 67,759.44

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Solution

The fourth proportional to 113,054.64, 156,042.92 and 67,759.44 is: 93,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,054.64 : 156,042.92 = 67,759.44 : x
  2. Step 2: Convert to fraction form
    113,054.64/156,042.92 = 67,759.44/x
  3. Step 3: Cross multiply
    113,054.64x = 156,042.92 × 67,759.44
  4. Step 4: Simplify right side
    113,054.64x = 10,573,379,756.15
  5. Step 5: Solve for x
    x = 10,573,379,756.15/113,054.64
  6. Step 6: Final answer
    x = 93,524.51

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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.