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Finding the Fourth Proportional to 265,126.89, 397,752.63 and 87,633.91

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Solution

The fourth proportional to 265,126.89, 397,752.63 and 87,633.91 is: 131,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,126.89 : 397,752.63 = 87,633.91 : x
  2. Step 2: Convert to fraction form
    265,126.89/397,752.63 = 87,633.91/x
  3. Step 3: Cross multiply
    265,126.89x = 397,752.63 × 87,633.91
  4. Step 4: Simplify right side
    265,126.89x = 34,856,618,348.25
  5. Step 5: Solve for x
    x = 34,856,618,348.25/265,126.89
  6. Step 6: Final answer
    x = 131,471.45

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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.