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Finding the Fourth Proportional to 66,183.51, 99,232.68 and 43,668.15

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Solution

The fourth proportional to 66,183.51, 99,232.68 and 43,668.15 is: 65,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,183.51 : 99,232.68 = 43,668.15 : x
  2. Step 2: Convert to fraction form
    66,183.51/99,232.68 = 43,668.15/x
  3. Step 3: Cross multiply
    66,183.51x = 99,232.68 × 43,668.15
  4. Step 4: Simplify right side
    66,183.51x = 4,333,307,555.14
  5. Step 5: Solve for x
    x = 4,333,307,555.14/66,183.51
  6. Step 6: Final answer
    x = 65,474.13

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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.