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Finding the Fourth Proportional to 77,015.88, 106,283.34 and 43,481.88

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Solution

The fourth proportional to 77,015.88, 106,283.34 and 43,481.88 is: 60,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015.88 : 106,283.34 = 43,481.88 : x
  2. Step 2: Convert to fraction form
    77,015.88/106,283.34 = 43,481.88/x
  3. Step 3: Cross multiply
    77,015.88x = 106,283.34 × 43,481.88
  4. Step 4: Simplify right side
    77,015.88x = 4,621,399,435.88
  5. Step 5: Solve for x
    x = 4,621,399,435.88/77,015.88
  6. Step 6: Final answer
    x = 60,005.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.