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Finding the Fourth Proportional to 104,832.32, 144,620.22 and 61,782.44

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Solution

The fourth proportional to 104,832.32, 144,620.22 and 61,782.44 is: 85,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,832.32 : 144,620.22 = 61,782.44 : x
  2. Step 2: Convert to fraction form
    104,832.32/144,620.22 = 61,782.44/x
  3. Step 3: Cross multiply
    104,832.32x = 144,620.22 × 61,782.44
  4. Step 4: Simplify right side
    104,832.32x = 8,934,990,064.94
  5. Step 5: Solve for x
    x = 8,934,990,064.94/104,832.32
  6. Step 6: Final answer
    x = 85,231.25

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1.5x scale

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.