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Finding the Fourth Proportional to 101,197.26, 139,664.52 and 58,755.78

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Solution

The fourth proportional to 101,197.26, 139,664.52 and 58,755.78 is: 81,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,197.26 : 139,664.52 = 58,755.78 : x
  2. Step 2: Convert to fraction form
    101,197.26/139,664.52 = 58,755.78/x
  3. Step 3: Cross multiply
    101,197.26x = 139,664.52 × 58,755.78
  4. Step 4: Simplify right side
    101,197.26x = 8,206,097,810.93
  5. Step 5: Solve for x
    x = 8,206,097,810.93/101,197.26
  6. Step 6: Final answer
    x = 81,090.12

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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.