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Finding the Fourth Proportional to 265,126.67, 397,752.26 and 87,633.66

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Solution

The fourth proportional to 265,126.67, 397,752.26 and 87,633.66 is: 131,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,126.67 : 397,752.26 = 87,633.66 : x
  2. Step 2: Convert to fraction form
    265,126.67/397,752.26 = 87,633.66/x
  3. Step 3: Cross multiply
    265,126.67x = 397,752.26 × 87,633.66
  4. Step 4: Simplify right side
    265,126.67x = 34,856,486,203.28
  5. Step 5: Solve for x
    x = 34,856,486,203.28/265,126.67
  6. Step 6: Final answer
    x = 131,471.07

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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.