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Finding the Fourth Proportional to 202,218.21, 303,328.53 and 89,872.02

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Solution

The fourth proportional to 202,218.21, 303,328.53 and 89,872.02 is: 134,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,218.21 : 303,328.53 = 89,872.02 : x
  2. Step 2: Convert to fraction form
    202,218.21/303,328.53 = 89,872.02/x
  3. Step 3: Cross multiply
    202,218.21x = 303,328.53 × 89,872.02
  4. Step 4: Simplify right side
    202,218.21x = 27,260,747,714.73
  5. Step 5: Solve for x
    x = 27,260,747,714.73/202,218.21
  6. Step 6: Final answer
    x = 134,808.57

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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.