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Finding the Fourth Proportional to 143,684.44, 215,426.64 and 63,679

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Solution

The fourth proportional to 143,684.44, 215,426.64 and 63,679 is: 95,474.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,684.44 : 215,426.64 = 63,679 : x
  2. Step 2: Convert to fraction form
    143,684.44/215,426.64 = 63,679/x
  3. Step 3: Cross multiply
    143,684.44x = 215,426.64 × 63,679
  4. Step 4: Simplify right side
    143,684.44x = 13,718,153,008.56
  5. Step 5: Solve for x
    x = 13,718,153,008.56/143,684.44
  6. Step 6: Final answer
    x = 95,474.17

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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.