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Finding the Fourth Proportional to 88,315.80, 121,832.94 and 52,480.44

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Solution

The fourth proportional to 88,315.80, 121,832.94 and 52,480.44 is: 72,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,315.80 : 121,832.94 = 52,480.44 : x
  2. Step 2: Convert to fraction form
    88,315.80/121,832.94 = 52,480.44/x
  3. Step 3: Cross multiply
    88,315.80x = 121,832.94 × 52,480.44
  4. Step 4: Simplify right side
    88,315.80x = 6,393,846,297.69
  5. Step 5: Solve for x
    x = 6,393,846,297.69/88,315.80
  6. Step 6: Final answer
    x = 72,397.54

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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.