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Finding the Fourth Proportional to 86,633.69, 119,555.48 and 50,824.31

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Solution

The fourth proportional to 86,633.69, 119,555.48 and 50,824.31 is: 70,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,633.69 : 119,555.48 = 50,824.31 : x
  2. Step 2: Convert to fraction form
    86,633.69/119,555.48 = 50,824.31/x
  3. Step 3: Cross multiply
    86,633.69x = 119,555.48 × 50,824.31
  4. Step 4: Simplify right side
    86,633.69x = 6,076,324,777.72
  5. Step 5: Solve for x
    x = 6,076,324,777.72/86,633.69
  6. Step 6: Final answer
    x = 70,138.13

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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.