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Finding the Fourth Proportional to 95,911.78, 143,695.30 and 56,447.37

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Solution

The fourth proportional to 95,911.78, 143,695.30 and 56,447.37 is: 84,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,911.78 : 143,695.30 = 56,447.37 : x
  2. Step 2: Convert to fraction form
    95,911.78/143,695.30 = 56,447.37/x
  3. Step 3: Cross multiply
    95,911.78x = 143,695.30 × 56,447.37
  4. Step 4: Simplify right side
    95,911.78x = 8,111,221,766.36
  5. Step 5: Solve for x
    x = 8,111,221,766.36/95,911.78
  6. Step 6: Final answer
    x = 84,569.61

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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.