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Finding the Fourth Proportional to 173,115.86, 259,699.71 and 54,747.86

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Solution

The fourth proportional to 173,115.86, 259,699.71 and 54,747.86 is: 82,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,115.86 : 259,699.71 = 54,747.86 : x
  2. Step 2: Convert to fraction form
    173,115.86/259,699.71 = 54,747.86/x
  3. Step 3: Cross multiply
    173,115.86x = 259,699.71 × 54,747.86
  4. Step 4: Simplify right side
    173,115.86x = 14,218,003,365.12
  5. Step 5: Solve for x
    x = 14,218,003,365.12/173,115.86
  6. Step 6: Final answer
    x = 82,129.99

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1.5x scale

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.