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Finding the Fourth Proportional to 143,504.64, 215,305.36 and 63,531.56

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Solution

The fourth proportional to 143,504.64, 215,305.36 and 63,531.56 is: 95,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,504.64 : 215,305.36 = 63,531.56 : x
  2. Step 2: Convert to fraction form
    143,504.64/215,305.36 = 63,531.56/x
  3. Step 3: Cross multiply
    143,504.64x = 215,305.36 × 63,531.56
  4. Step 4: Simplify right side
    143,504.64x = 13,678,684,969.20
  5. Step 5: Solve for x
    x = 13,678,684,969.20/143,504.64
  6. Step 6: Final answer
    x = 95,318.77

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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.