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Finding the Fourth Proportional to 236,596.50, 354,719.79 and 143,081.46

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Solution

The fourth proportional to 236,596.50, 354,719.79 and 143,081.46 is: 214,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,596.50 : 354,719.79 = 143,081.46 : x
  2. Step 2: Convert to fraction form
    236,596.50/354,719.79 = 143,081.46/x
  3. Step 3: Cross multiply
    236,596.50x = 354,719.79 × 143,081.46
  4. Step 4: Simplify right side
    236,596.50x = 50,753,825,444.09
  5. Step 5: Solve for x
    x = 50,753,825,444.09/236,596.50
  6. Step 6: Final answer
    x = 214,516.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.