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Finding the Fourth Proportional to 64,467.78, 89,007.03 and 44,318.22

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Solution

The fourth proportional to 64,467.78, 89,007.03 and 44,318.22 is: 61,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,467.78 : 89,007.03 = 44,318.22 : x
  2. Step 2: Convert to fraction form
    64,467.78/89,007.03 = 44,318.22/x
  3. Step 3: Cross multiply
    64,467.78x = 89,007.03 × 44,318.22
  4. Step 4: Simplify right side
    64,467.78x = 3,944,633,137.09
  5. Step 5: Solve for x
    x = 3,944,633,137.09/64,467.78
  6. Step 6: Final answer
    x = 61,187.67

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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.