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Finding the Fourth Proportional to 372,383.20, 558,574.80 and 123,065.20

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Solution

The fourth proportional to 372,383.20, 558,574.80 and 123,065.20 is: 184,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,383.20 : 558,574.80 = 123,065.20 : x
  2. Step 2: Convert to fraction form
    372,383.20/558,574.80 = 123,065.20/x
  3. Step 3: Cross multiply
    372,383.20x = 558,574.80 × 123,065.20
  4. Step 4: Simplify right side
    372,383.20x = 68,741,119,476.96
  5. Step 5: Solve for x
    x = 68,741,119,476.96/372,383.20
  6. Step 6: Final answer
    x = 184,597.80

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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.