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Finding the Fourth Proportional to 220,782.16, 330,912.48 and 94,385.44

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Solution

The fourth proportional to 220,782.16, 330,912.48 and 94,385.44 is: 141,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,782.16 : 330,912.48 = 94,385.44 : x
  2. Step 2: Convert to fraction form
    220,782.16/330,912.48 = 94,385.44/x
  3. Step 3: Cross multiply
    220,782.16x = 330,912.48 × 94,385.44
  4. Step 4: Simplify right side
    220,782.16x = 31,233,320,026.29
  5. Step 5: Solve for x
    x = 31,233,320,026.29/220,782.16
  6. Step 6: Final answer
    x = 141,466.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.