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Finding the Fourth Proportional to 181,603.81, 250,621.38 and 151,338.49

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Solution

The fourth proportional to 181,603.81, 250,621.38 and 151,338.49 is: 208,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,603.81 : 250,621.38 = 151,338.49 : x
  2. Step 2: Convert to fraction form
    181,603.81/250,621.38 = 151,338.49/x
  3. Step 3: Cross multiply
    181,603.81x = 250,621.38 × 151,338.49
  4. Step 4: Simplify right side
    181,603.81x = 37,928,661,210.92
  5. Step 5: Solve for x
    x = 37,928,661,210.92/181,603.81
  6. Step 6: Final answer
    x = 208,853.88

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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.