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Finding the Fourth Proportional to 147,676.08, 203,792.96 and 80,608.08

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Solution

The fourth proportional to 147,676.08, 203,792.96 and 80,608.08 is: 111,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,676.08 : 203,792.96 = 80,608.08 : x
  2. Step 2: Convert to fraction form
    147,676.08/203,792.96 = 80,608.08/x
  3. Step 3: Cross multiply
    147,676.08x = 203,792.96 × 80,608.08
  4. Step 4: Simplify right side
    147,676.08x = 16,427,359,223.12
  5. Step 5: Solve for x
    x = 16,427,359,223.12/147,676.08
  6. Step 6: Final answer
    x = 111,239.13

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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.