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Finding the Fourth Proportional to 221,647.80, 332,003.70 and 146,803.80

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Solution

The fourth proportional to 221,647.80, 332,003.70 and 146,803.80 is: 219,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,647.80 : 332,003.70 = 146,803.80 : x
  2. Step 2: Convert to fraction form
    221,647.80/332,003.70 = 146,803.80/x
  3. Step 3: Cross multiply
    221,647.80x = 332,003.70 × 146,803.80
  4. Step 4: Simplify right side
    221,647.80x = 48,739,404,774.06
  5. Step 5: Solve for x
    x = 48,739,404,774.06/221,647.80
  6. Step 6: Final answer
    x = 219,895.73

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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.