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Finding the Fourth Proportional to 65,754.17, 90,736.20 and 37,074.86

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Solution

The fourth proportional to 65,754.17, 90,736.20 and 37,074.86 is: 51,160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,754.17 : 90,736.20 = 37,074.86 : x
  2. Step 2: Convert to fraction form
    65,754.17/90,736.20 = 37,074.86/x
  3. Step 3: Cross multiply
    65,754.17x = 90,736.20 × 37,074.86
  4. Step 4: Simplify right side
    65,754.17x = 3,364,031,911.93
  5. Step 5: Solve for x
    x = 3,364,031,911.93/65,754.17
  6. Step 6: Final answer
    x = 51,160.74

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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.