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Finding the Fourth Proportional to 86,796.34, 119,777.87 and 50,989.61

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Solution

The fourth proportional to 86,796.34, 119,777.87 and 50,989.61 is: 70,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,796.34 : 119,777.87 = 50,989.61 : x
  2. Step 2: Convert to fraction form
    86,796.34/119,777.87 = 50,989.61/x
  3. Step 3: Cross multiply
    86,796.34x = 119,777.87 × 50,989.61
  4. Step 4: Simplify right side
    86,796.34x = 6,107,426,622.98
  5. Step 5: Solve for x
    x = 6,107,426,622.98/86,796.34
  6. Step 6: Final answer
    x = 70,365.03

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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.