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Finding the Fourth Proportional to 101,255.91, 139,772.98 and 66,795.16

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Solution

The fourth proportional to 101,255.91, 139,772.98 and 66,795.16 is: 92,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,255.91 : 139,772.98 = 66,795.16 : x
  2. Step 2: Convert to fraction form
    101,255.91/139,772.98 = 66,795.16/x
  3. Step 3: Cross multiply
    101,255.91x = 139,772.98 × 66,795.16
  4. Step 4: Simplify right side
    101,255.91x = 9,336,158,562.78
  5. Step 5: Solve for x
    x = 9,336,158,562.78/101,255.91
  6. Step 6: Final answer
    x = 92,203.59

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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.