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Finding the Fourth Proportional to 125,611.92, 173,203.11 and 96,866.64

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Solution

The fourth proportional to 125,611.92, 173,203.11 and 96,866.64 is: 133,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,611.92 : 173,203.11 = 96,866.64 : x
  2. Step 2: Convert to fraction form
    125,611.92/173,203.11 = 96,866.64/x
  3. Step 3: Cross multiply
    125,611.92x = 173,203.11 × 96,866.64
  4. Step 4: Simplify right side
    125,611.92x = 16,777,603,303.25
  5. Step 5: Solve for x
    x = 16,777,603,303.25/125,611.92
  6. Step 6: Final answer
    x = 133,566.97

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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.