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Finding the Fourth Proportional to 143,761.14, 215,674.52 and 43,935.53

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Solution

The fourth proportional to 143,761.14, 215,674.52 and 43,935.53 is: 65,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,761.14 : 215,674.52 = 43,935.53 : x
  2. Step 2: Convert to fraction form
    143,761.14/215,674.52 = 43,935.53/x
  3. Step 3: Cross multiply
    143,761.14x = 215,674.52 × 43,935.53
  4. Step 4: Simplify right side
    143,761.14x = 9,475,773,045.65
  5. Step 5: Solve for x
    x = 9,475,773,045.65/143,761.14
  6. Step 6: Final answer
    x = 65,913.31

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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.