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Finding the Fourth Proportional to 239,167.68, 330,051.78 and 131,738.01

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Solution

The fourth proportional to 239,167.68, 330,051.78 and 131,738.01 is: 181,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,167.68 : 330,051.78 = 131,738.01 : x
  2. Step 2: Convert to fraction form
    239,167.68/330,051.78 = 131,738.01/x
  3. Step 3: Cross multiply
    239,167.68x = 330,051.78 × 131,738.01
  4. Step 4: Simplify right side
    239,167.68x = 43,480,364,694.16
  5. Step 5: Solve for x
    x = 43,480,364,694.16/239,167.68
  6. Step 6: Final answer
    x = 181,798.66

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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.