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Finding the Fourth Proportional to 173,018.97, 259,163.65 and 109,805.76

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Solution

The fourth proportional to 173,018.97, 259,163.65 and 109,805.76 is: 164,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,018.97 : 259,163.65 = 109,805.76 : x
  2. Step 2: Convert to fraction form
    173,018.97/259,163.65 = 109,805.76/x
  3. Step 3: Cross multiply
    173,018.97x = 259,163.65 × 109,805.76
  4. Step 4: Simplify right side
    173,018.97x = 28,457,661,552.62
  5. Step 5: Solve for x
    x = 28,457,661,552.62/173,018.97
  6. Step 6: Final answer
    x = 164,477.12

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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.