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Finding the Fourth Proportional to 173,187.86, 259,864.35 and 119,961.86

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Solution

The fourth proportional to 173,187.86, 259,864.35 and 119,961.86 is: 179,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,187.86 : 259,864.35 = 119,961.86 : x
  2. Step 2: Convert to fraction form
    173,187.86/259,864.35 = 119,961.86/x
  3. Step 3: Cross multiply
    173,187.86x = 259,864.35 × 119,961.86
  4. Step 4: Simplify right side
    173,187.86x = 31,173,810,773.69
  5. Step 5: Solve for x
    x = 31,173,810,773.69/173,187.86
  6. Step 6: Final answer
    x = 179,999.98

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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.