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Finding the Fourth Proportional to 90,461.80, 124,837.67 and 50,179.29

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Solution

The fourth proportional to 90,461.80, 124,837.67 and 50,179.29 is: 69,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,461.80 : 124,837.67 = 50,179.29 : x
  2. Step 2: Convert to fraction form
    90,461.80/124,837.67 = 50,179.29/x
  3. Step 3: Cross multiply
    90,461.80x = 124,837.67 × 50,179.29
  4. Step 4: Simplify right side
    90,461.80x = 6,264,265,645.85
  5. Step 5: Solve for x
    x = 6,264,265,645.85/90,461.80
  6. Step 6: Final answer
    x = 69,247.63

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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.