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Finding the Fourth Proportional to 66,062.56, 99,081.46 and 30,522.40

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Solution

The fourth proportional to 66,062.56, 99,081.46 and 30,522.40 is: 45,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,062.56 : 99,081.46 = 30,522.40 : x
  2. Step 2: Convert to fraction form
    66,062.56/99,081.46 = 30,522.40/x
  3. Step 3: Cross multiply
    66,062.56x = 99,081.46 × 30,522.40
  4. Step 4: Simplify right side
    66,062.56x = 3,024,203,954.70
  5. Step 5: Solve for x
    x = 3,024,203,954.70/66,062.56
  6. Step 6: Final answer
    x = 45,777.88

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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.