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Finding the Fourth Proportional to 881,103.16, 1,321,656 and 216,255.16

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Solution

The fourth proportional to 881,103.16, 1,321,656 and 216,255.16 is: 324,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,103.16 : 1,321,656 = 216,255.16 : x
  2. Step 2: Convert to fraction form
    881,103.16/1,321,656 = 216,255.16/x
  3. Step 3: Cross multiply
    881,103.16x = 1,321,656 × 216,255.16
  4. Step 4: Simplify right side
    881,103.16x = 285,814,929,744.96
  5. Step 5: Solve for x
    x = 285,814,929,744.96/881,103.16
  6. Step 6: Final answer
    x = 324,383.05

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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.