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Finding the Fourth Proportional to 95,362.90, 143,138.51 and 71,587.78

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Solution

The fourth proportional to 95,362.90, 143,138.51 and 71,587.78 is: 107,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,362.90 : 143,138.51 = 71,587.78 : x
  2. Step 2: Convert to fraction form
    95,362.90/143,138.51 = 71,587.78/x
  3. Step 3: Cross multiply
    95,362.90x = 143,138.51 × 71,587.78
  4. Step 4: Simplify right side
    95,362.90x = 10,246,968,163.41
  5. Step 5: Solve for x
    x = 10,246,968,163.41/95,362.90
  6. Step 6: Final answer
    x = 107,452.35

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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.