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Finding the Fourth Proportional to 95,645.84, 143,407.22 and 45,724.82

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Solution

The fourth proportional to 95,645.84, 143,407.22 and 45,724.82 is: 68,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,645.84 : 143,407.22 = 45,724.82 : x
  2. Step 2: Convert to fraction form
    95,645.84/143,407.22 = 45,724.82/x
  3. Step 3: Cross multiply
    95,645.84x = 143,407.22 × 45,724.82
  4. Step 4: Simplify right side
    95,645.84x = 6,557,269,321.20
  5. Step 5: Solve for x
    x = 6,557,269,321.20/95,645.84
  6. Step 6: Final answer
    x = 68,557.81

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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.