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Finding the Fourth Proportional to 150,943.50, 208,142.43 and 126,727.79

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Solution

The fourth proportional to 150,943.50, 208,142.43 and 126,727.79 is: 174,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,943.50 : 208,142.43 = 126,727.79 : x
  2. Step 2: Convert to fraction form
    150,943.50/208,142.43 = 126,727.79/x
  3. Step 3: Cross multiply
    150,943.50x = 208,142.43 × 126,727.79
  4. Step 4: Simplify right side
    150,943.50x = 26,377,429,118.42
  5. Step 5: Solve for x
    x = 26,377,429,118.42/150,943.50
  6. Step 6: Final answer
    x = 174,750.35

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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.