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Finding the Fourth Proportional to 76,896.60, 106,051.03 and 50,029.30

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Solution

The fourth proportional to 76,896.60, 106,051.03 and 50,029.30 is: 68,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896.60 : 106,051.03 = 50,029.30 : x
  2. Step 2: Convert to fraction form
    76,896.60/106,051.03 = 50,029.30/x
  3. Step 3: Cross multiply
    76,896.60x = 106,051.03 × 50,029.30
  4. Step 4: Simplify right side
    76,896.60x = 5,305,658,795.18
  5. Step 5: Solve for x
    x = 5,305,658,795.18/76,896.60
  6. Step 6: Final answer
    x = 68,997.31

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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.