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Finding the Fourth Proportional to 143,685.31, 215,527.99 and 43,846.03

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Solution

The fourth proportional to 143,685.31, 215,527.99 and 43,846.03 is: 65,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,685.31 : 215,527.99 = 43,846.03 : x
  2. Step 2: Convert to fraction form
    143,685.31/215,527.99 = 43,846.03/x
  3. Step 3: Cross multiply
    143,685.31x = 215,527.99 × 43,846.03
  4. Step 4: Simplify right side
    143,685.31x = 9,450,046,715.38
  5. Step 5: Solve for x
    x = 9,450,046,715.38/143,685.31
  6. Step 6: Final answer
    x = 65,769.05

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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.