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Finding the Fourth Proportional to 65,366.48, 90,203.99 and 37,071.56

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Solution

The fourth proportional to 65,366.48, 90,203.99 and 37,071.56 is: 51,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,366.48 : 90,203.99 = 37,071.56 : x
  2. Step 2: Convert to fraction form
    65,366.48/90,203.99 = 37,071.56/x
  3. Step 3: Cross multiply
    65,366.48x = 90,203.99 × 37,071.56
  4. Step 4: Simplify right side
    65,366.48x = 3,344,002,627.52
  5. Step 5: Solve for x
    x = 3,344,002,627.52/65,366.48
  6. Step 6: Final answer
    x = 51,157.76

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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.