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Finding the Fourth Proportional to 269,979, 372,571.02 and 150,747

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Solution

The fourth proportional to 269,979, 372,571.02 and 150,747 is: 208,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,979 : 372,571.02 = 150,747 : x
  2. Step 2: Convert to fraction form
    269,979/372,571.02 = 150,747/x
  3. Step 3: Cross multiply
    269,979x = 372,571.02 × 150,747
  4. Step 4: Simplify right side
    269,979x = 56,163,963,551.94
  5. Step 5: Solve for x
    x = 56,163,963,551.94/269,979
  6. Step 6: Final answer
    x = 208,030.86

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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.