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Finding the Fourth Proportional to 111,220.32, 166,810.32 and 44,657.76

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Solution

The fourth proportional to 111,220.32, 166,810.32 and 44,657.76 is: 66,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.32 : 166,810.32 = 44,657.76 : x
  2. Step 2: Convert to fraction form
    111,220.32/166,810.32 = 44,657.76/x
  3. Step 3: Cross multiply
    111,220.32x = 166,810.32 × 44,657.76
  4. Step 4: Simplify right side
    111,220.32x = 7,449,375,236.08
  5. Step 5: Solve for x
    x = 7,449,375,236.08/111,220.32
  6. Step 6: Final answer
    x = 66,978.55

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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.