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Finding the Fourth Proportional to 174,489.43, 261,864.42 and 129,614.41

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Solution

The fourth proportional to 174,489.43, 261,864.42 and 129,614.41 is: 194,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,489.43 : 261,864.42 = 129,614.41 : x
  2. Step 2: Convert to fraction form
    174,489.43/261,864.42 = 129,614.41/x
  3. Step 3: Cross multiply
    174,489.43x = 261,864.42 × 129,614.41
  4. Step 4: Simplify right side
    174,489.43x = 33,941,402,504.11
  5. Step 5: Solve for x
    x = 33,941,402,504.11/174,489.43
  6. Step 6: Final answer
    x = 194,518.38

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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.