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Finding the Fourth Proportional to 194,866.40, 291,716.40 and 173,871.20

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Solution

The fourth proportional to 194,866.40, 291,716.40 and 173,871.20 is: 260,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,866.40 : 291,716.40 = 173,871.20 : x
  2. Step 2: Convert to fraction form
    194,866.40/291,716.40 = 173,871.20/x
  3. Step 3: Cross multiply
    194,866.40x = 291,716.40 × 173,871.20
  4. Step 4: Simplify right side
    194,866.40x = 50,721,080,527.68
  5. Step 5: Solve for x
    x = 50,721,080,527.68/194,866.40
  6. Step 6: Final answer
    x = 260,286.43

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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.