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Finding the Fourth Proportional to 117,375.76, 162,041.31 and 91,827.82

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Solution

The fourth proportional to 117,375.76, 162,041.31 and 91,827.82 is: 126,771.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,375.76 : 162,041.31 = 91,827.82 : x
  2. Step 2: Convert to fraction form
    117,375.76/162,041.31 = 91,827.82/x
  3. Step 3: Cross multiply
    117,375.76x = 162,041.31 × 91,827.82
  4. Step 4: Simplify right side
    117,375.76x = 14,879,900,247.24
  5. Step 5: Solve for x
    x = 14,879,900,247.24/117,375.76
  6. Step 6: Final answer
    x = 126,771.49

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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.