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Finding the Fourth Proportional to 271,323.81, 373,995.45 and 213,869.97

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Solution

The fourth proportional to 271,323.81, 373,995.45 and 213,869.97 is: 294,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,323.81 : 373,995.45 = 213,869.97 : x
  2. Step 2: Convert to fraction form
    271,323.81/373,995.45 = 213,869.97/x
  3. Step 3: Cross multiply
    271,323.81x = 373,995.45 × 213,869.97
  4. Step 4: Simplify right side
    271,323.81x = 79,986,395,671.64
  5. Step 5: Solve for x
    x = 79,986,395,671.64/271,323.81
  6. Step 6: Final answer
    x = 294,800.50

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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.