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Finding the Fourth Proportional to 44,148, 66,178.26 and 20,732.52

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Solution

The fourth proportional to 44,148, 66,178.26 and 20,732.52 is: 31,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,148 : 66,178.26 = 20,732.52 : x
  2. Step 2: Convert to fraction form
    44,148/66,178.26 = 20,732.52/x
  3. Step 3: Cross multiply
    44,148x = 66,178.26 × 20,732.52
  4. Step 4: Simplify right side
    44,148x = 1,372,042,099.02
  5. Step 5: Solve for x
    x = 1,372,042,099.02/44,148
  6. Step 6: Final answer
    x = 31,078.24

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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.