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Finding the Fourth Proportional to 239,251.93, 330,167.40 and 131,821.93

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Solution

The fourth proportional to 239,251.93, 330,167.40 and 131,821.93 is: 181,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,251.93 : 330,167.40 = 131,821.93 : x
  2. Step 2: Convert to fraction form
    239,251.93/330,167.40 = 131,821.93/x
  3. Step 3: Cross multiply
    239,251.93x = 330,167.40 × 131,821.93
  4. Step 4: Simplify right side
    239,251.93x = 43,523,303,809.46
  5. Step 5: Solve for x
    x = 43,523,303,809.46/239,251.93
  6. Step 6: Final answer
    x = 181,914.12

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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.