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Finding the Fourth Proportional to 90,296.87, 124,610.97 and 52,055.69

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Solution

The fourth proportional to 90,296.87, 124,610.97 and 52,055.69 is: 71,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,296.87 : 124,610.97 = 52,055.69 : x
  2. Step 2: Convert to fraction form
    90,296.87/124,610.97 = 52,055.69/x
  3. Step 3: Cross multiply
    90,296.87x = 124,610.97 × 52,055.69
  4. Step 4: Simplify right side
    90,296.87x = 6,486,709,401.86
  5. Step 5: Solve for x
    x = 6,486,709,401.86/90,296.87
  6. Step 6: Final answer
    x = 71,837.59

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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.