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Finding the Fourth Proportional to 286,674.66, 395,578.89 and 171,958.01

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Solution

The fourth proportional to 286,674.66, 395,578.89 and 171,958.01 is: 237,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,674.66 : 395,578.89 = 171,958.01 : x
  2. Step 2: Convert to fraction form
    286,674.66/395,578.89 = 171,958.01/x
  3. Step 3: Cross multiply
    286,674.66x = 395,578.89 × 171,958.01
  4. Step 4: Simplify right side
    286,674.66x = 68,022,956,744.51
  5. Step 5: Solve for x
    x = 68,022,956,744.51/286,674.66
  6. Step 6: Final answer
    x = 237,282.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.