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Finding the Fourth Proportional to 117,703.77, 162,434.39 and 63,992.48

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Solution

The fourth proportional to 117,703.77, 162,434.39 and 63,992.48 is: 88,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.77 : 162,434.39 = 63,992.48 : x
  2. Step 2: Convert to fraction form
    117,703.77/162,434.39 = 63,992.48/x
  3. Step 3: Cross multiply
    117,703.77x = 162,434.39 × 63,992.48
  4. Step 4: Simplify right side
    117,703.77x = 10,394,578,321.25
  5. Step 5: Solve for x
    x = 10,394,578,321.25/117,703.77
  6. Step 6: Final answer
    x = 88,311.35

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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.