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Finding the Fourth Proportional to 372,305.77, 558,186.39 and 119,442.40

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Solution

The fourth proportional to 372,305.77, 558,186.39 and 119,442.40 is: 179,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,305.77 : 558,186.39 = 119,442.40 : x
  2. Step 2: Convert to fraction form
    372,305.77/558,186.39 = 119,442.40/x
  3. Step 3: Cross multiply
    372,305.77x = 558,186.39 × 119,442.40
  4. Step 4: Simplify right side
    372,305.77x = 66,671,120,673.47
  5. Step 5: Solve for x
    x = 66,671,120,673.47/372,305.77
  6. Step 6: Final answer
    x = 179,076.25

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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.