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Finding the Fourth Proportional to 143,680.44, 215,420.64 and 63,675

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Solution

The fourth proportional to 143,680.44, 215,420.64 and 63,675 is: 95,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,680.44 : 215,420.64 = 63,675 : x
  2. Step 2: Convert to fraction form
    143,680.44/215,420.64 = 63,675/x
  3. Step 3: Cross multiply
    143,680.44x = 215,420.64 × 63,675
  4. Step 4: Simplify right side
    143,680.44x = 13,716,909,252
  5. Step 5: Solve for x
    x = 13,716,909,252/143,680.44
  6. Step 6: Final answer
    x = 95,468.17

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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.