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Finding the Fourth Proportional to 66,093.86, 99,144.44 and 42,867.92

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Solution

The fourth proportional to 66,093.86, 99,144.44 and 42,867.92 is: 64,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,093.86 : 99,144.44 = 42,867.92 : x
  2. Step 2: Convert to fraction form
    66,093.86/99,144.44 = 42,867.92/x
  3. Step 3: Cross multiply
    66,093.86x = 99,144.44 × 42,867.92
  4. Step 4: Simplify right side
    66,093.86x = 4,250,115,212.30
  5. Step 5: Solve for x
    x = 4,250,115,212.30/66,093.86
  6. Step 6: Final answer
    x = 64,304.24

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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.