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Finding the Fourth Proportional to 91,843.77, 126,708.18 and 53,055.96

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Solution

The fourth proportional to 91,843.77, 126,708.18 and 53,055.96 is: 73,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,843.77 : 126,708.18 = 53,055.96 : x
  2. Step 2: Convert to fraction form
    91,843.77/126,708.18 = 53,055.96/x
  3. Step 3: Cross multiply
    91,843.77x = 126,708.18 × 53,055.96
  4. Step 4: Simplify right side
    91,843.77x = 6,722,623,496.21
  5. Step 5: Solve for x
    x = 6,722,623,496.21/91,843.77
  6. Step 6: Final answer
    x = 73,196.29

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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.