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Finding the Fourth Proportional to 147,072.52, 220,433.82 and 53,469.64

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Solution

The fourth proportional to 147,072.52, 220,433.82 and 53,469.64 is: 80,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,072.52 : 220,433.82 = 53,469.64 : x
  2. Step 2: Convert to fraction form
    147,072.52/220,433.82 = 53,469.64/x
  3. Step 3: Cross multiply
    147,072.52x = 220,433.82 × 53,469.64
  4. Step 4: Simplify right side
    147,072.52x = 11,786,516,999.22
  5. Step 5: Solve for x
    x = 11,786,516,999.22/147,072.52
  6. Step 6: Final answer
    x = 80,140.85

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1.5x scale

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.