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Finding the Fourth Proportional to 131,555.97, 197,346.43 and 36,786.16

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Solution

The fourth proportional to 131,555.97, 197,346.43 and 36,786.16 is: 55,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,555.97 : 197,346.43 = 36,786.16 : x
  2. Step 2: Convert to fraction form
    131,555.97/197,346.43 = 36,786.16/x
  3. Step 3: Cross multiply
    131,555.97x = 197,346.43 × 36,786.16
  4. Step 4: Simplify right side
    131,555.97x = 7,259,616,178.75
  5. Step 5: Solve for x
    x = 7,259,616,178.75/131,555.97
  6. Step 6: Final answer
    x = 55,182.72

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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.