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Finding the Fourth Proportional to 202,589.28, 303,869.28 and 88,748.64

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Solution

The fourth proportional to 202,589.28, 303,869.28 and 88,748.64 is: 133,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,589.28 : 303,869.28 = 88,748.64 : x
  2. Step 2: Convert to fraction form
    202,589.28/303,869.28 = 88,748.64/x
  3. Step 3: Cross multiply
    202,589.28x = 303,869.28 × 88,748.64
  4. Step 4: Simplify right side
    202,589.28x = 26,967,985,337.78
  5. Step 5: Solve for x
    x = 26,967,985,337.78/202,589.28
  6. Step 6: Final answer
    x = 133,116.55

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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.