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Finding the Fourth Proportional to 64,072.44, 88,449.84 and 42,865.56

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Solution

The fourth proportional to 64,072.44, 88,449.84 and 42,865.56 is: 59,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,072.44 : 88,449.84 = 42,865.56 : x
  2. Step 2: Convert to fraction form
    64,072.44/88,449.84 = 42,865.56/x
  3. Step 3: Cross multiply
    64,072.44x = 88,449.84 × 42,865.56
  4. Step 4: Simplify right side
    64,072.44x = 3,791,451,923.51
  5. Step 5: Solve for x
    x = 3,791,451,923.51/64,072.44
  6. Step 6: Final answer
    x = 59,174.46

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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.