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Finding the Fourth Proportional to 111,505.80, 167,063.82 and 92,905.32

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Solution

The fourth proportional to 111,505.80, 167,063.82 and 92,905.32 is: 139,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,505.80 : 167,063.82 = 92,905.32 : x
  2. Step 2: Convert to fraction form
    111,505.80/167,063.82 = 92,905.32/x
  3. Step 3: Cross multiply
    111,505.80x = 167,063.82 × 92,905.32
  4. Step 4: Simplify right side
    111,505.80x = 15,521,117,657.52
  5. Step 5: Solve for x
    x = 15,521,117,657.52/111,505.80
  6. Step 6: Final answer
    x = 139,195.61

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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.