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Finding the Fourth Proportional to 172,804.44, 259,242.84 and 72,964.92

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Solution

The fourth proportional to 172,804.44, 259,242.84 and 72,964.92 is: 109,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,804.44 : 259,242.84 = 72,964.92 : x
  2. Step 2: Convert to fraction form
    172,804.44/259,242.84 = 72,964.92/x
  3. Step 3: Cross multiply
    172,804.44x = 259,242.84 × 72,964.92
  4. Step 4: Simplify right side
    172,804.44x = 18,915,633,081.17
  5. Step 5: Solve for x
    x = 18,915,633,081.17/172,804.44
  6. Step 6: Final answer
    x = 109,462.66

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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.