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Finding the Fourth Proportional to 372,016.80, 558,017.88 and 122,698.80

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Solution

The fourth proportional to 372,016.80, 558,017.88 and 122,698.80 is: 184,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,016.80 : 558,017.88 = 122,698.80 : x
  2. Step 2: Convert to fraction form
    372,016.80/558,017.88 = 122,698.80/x
  3. Step 3: Cross multiply
    372,016.80x = 558,017.88 × 122,698.80
  4. Step 4: Simplify right side
    372,016.80x = 68,468,124,254.54
  5. Step 5: Solve for x
    x = 68,468,124,254.54/372,016.80
  6. Step 6: Final answer
    x = 184,045.79

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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.