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Finding the Fourth Proportional to 86,473.99, 129,736.10 and 35,863.73

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Solution

The fourth proportional to 86,473.99, 129,736.10 and 35,863.73 is: 53,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,473.99 : 129,736.10 = 35,863.73 : x
  2. Step 2: Convert to fraction form
    86,473.99/129,736.10 = 35,863.73/x
  3. Step 3: Cross multiply
    86,473.99x = 129,736.10 × 35,863.73
  4. Step 4: Simplify right side
    86,473.99x = 4,652,820,741.16
  5. Step 5: Solve for x
    x = 4,652,820,741.16/86,473.99
  6. Step 6: Final answer
    x = 53,806.02

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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.