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Finding the Fourth Proportional to 86,857.77, 119,846.68 and 54,573.68

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Solution

The fourth proportional to 86,857.77, 119,846.68 and 54,573.68 is: 75,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.77 : 119,846.68 = 54,573.68 : x
  2. Step 2: Convert to fraction form
    86,857.77/119,846.68 = 54,573.68/x
  3. Step 3: Cross multiply
    86,857.77x = 119,846.68 × 54,573.68
  4. Step 4: Simplify right side
    86,857.77x = 6,540,474,304.94
  5. Step 5: Solve for x
    x = 6,540,474,304.94/86,857.77
  6. Step 6: Final answer
    x = 75,300.97

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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.