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Finding the Fourth Proportional to 104,949.80, 157,424.70 and 55,010.60

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Solution

The fourth proportional to 104,949.80, 157,424.70 and 55,010.60 is: 82,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,949.80 : 157,424.70 = 55,010.60 : x
  2. Step 2: Convert to fraction form
    104,949.80/157,424.70 = 55,010.60/x
  3. Step 3: Cross multiply
    104,949.80x = 157,424.70 × 55,010.60
  4. Step 4: Simplify right side
    104,949.80x = 8,660,027,201.82
  5. Step 5: Solve for x
    x = 8,660,027,201.82/104,949.80
  6. Step 6: Final answer
    x = 82,515.90

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1.5x scale

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.