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Finding the Fourth Proportional to 86,800.34, 119,783.38 and 50,993.61

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Solution

The fourth proportional to 86,800.34, 119,783.38 and 50,993.61 is: 70,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.34 : 119,783.38 = 50,993.61 : x
  2. Step 2: Convert to fraction form
    86,800.34/119,783.38 = 50,993.61/x
  3. Step 3: Cross multiply
    86,800.34x = 119,783.38 × 50,993.61
  4. Step 4: Simplify right side
    86,800.34x = 6,108,186,964.20
  5. Step 5: Solve for x
    x = 6,108,186,964.20/86,800.34
  6. Step 6: Final answer
    x = 70,370.54

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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.