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Finding the Fourth Proportional to 220,895.55, 331,354.85 and 63,147.87

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Solution

The fourth proportional to 220,895.55, 331,354.85 and 63,147.87 is: 94,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,895.55 : 331,354.85 = 63,147.87 : x
  2. Step 2: Convert to fraction form
    220,895.55/331,354.85 = 63,147.87/x
  3. Step 3: Cross multiply
    220,895.55x = 331,354.85 × 63,147.87
  4. Step 4: Simplify right side
    220,895.55x = 20,924,352,675.93
  5. Step 5: Solve for x
    x = 20,924,352,675.93/220,895.55
  6. Step 6: Final answer
    x = 94,725.10

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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.