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Finding the Fourth Proportional to 220,545.08, 330,821.40 and 62,777.60

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Solution

The fourth proportional to 220,545.08, 330,821.40 and 62,777.60 is: 94,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,545.08 : 330,821.40 = 62,777.60 : x
  2. Step 2: Convert to fraction form
    220,545.08/330,821.40 = 62,777.60/x
  3. Step 3: Cross multiply
    220,545.08x = 330,821.40 × 62,777.60
  4. Step 4: Simplify right side
    220,545.08x = 20,768,173,520.64
  5. Step 5: Solve for x
    x = 20,768,173,520.64/220,545.08
  6. Step 6: Final answer
    x = 94,167.48

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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.