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Finding the Fourth Proportional to 275,378.72, 413,111.32 and 117,608

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Solution

The fourth proportional to 275,378.72, 413,111.32 and 117,608 is: 176,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,378.72 : 413,111.32 = 117,608 : x
  2. Step 2: Convert to fraction form
    275,378.72/413,111.32 = 117,608/x
  3. Step 3: Cross multiply
    275,378.72x = 413,111.32 × 117,608
  4. Step 4: Simplify right side
    275,378.72x = 48,585,196,122.56
  5. Step 5: Solve for x
    x = 48,585,196,122.56/275,378.72
  6. Step 6: Final answer
    x = 176,430.47

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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.