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Finding the Fourth Proportional to 141,997, 195,957.48 and 99,039.48

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Solution

The fourth proportional to 141,997, 195,957.48 and 99,039.48 is: 136,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,997 : 195,957.48 = 99,039.48 : x
  2. Step 2: Convert to fraction form
    141,997/195,957.48 = 99,039.48/x
  3. Step 3: Cross multiply
    141,997x = 195,957.48 × 99,039.48
  4. Step 4: Simplify right side
    141,997x = 19,407,526,921.31
  5. Step 5: Solve for x
    x = 19,407,526,921.31/141,997
  6. Step 6: Final answer
    x = 136,675.61

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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.