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Finding the Fourth Proportional to 323,942.51, 486,054.11 and 174,007.87

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Solution

The fourth proportional to 323,942.51, 486,054.11 and 174,007.87 is: 261,087.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,942.51 : 486,054.11 = 174,007.87 : x
  2. Step 2: Convert to fraction form
    323,942.51/486,054.11 = 174,007.87/x
  3. Step 3: Cross multiply
    323,942.51x = 486,054.11 × 174,007.87
  4. Step 4: Simplify right side
    323,942.51x = 84,577,240,385.85
  5. Step 5: Solve for x
    x = 84,577,240,385.85/323,942.51
  6. Step 6: Final answer
    x = 261,087.19

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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.