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Finding the Fourth Proportional to 111,842.64, 154,342.26 and 64,094.76

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Solution

The fourth proportional to 111,842.64, 154,342.26 and 64,094.76 is: 88,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,842.64 : 154,342.26 = 64,094.76 : x
  2. Step 2: Convert to fraction form
    111,842.64/154,342.26 = 64,094.76/x
  3. Step 3: Cross multiply
    111,842.64x = 154,342.26 × 64,094.76
  4. Step 4: Simplify right side
    111,842.64x = 9,892,530,112.56
  5. Step 5: Solve for x
    x = 9,892,530,112.56/111,842.64
  6. Step 6: Final answer
    x = 88,450.43

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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.