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Finding the Fourth Proportional to 489,548.49, 734,156.39 and 169,625.70

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Solution

The fourth proportional to 489,548.49, 734,156.39 and 169,625.70 is: 254,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,548.49 : 734,156.39 = 169,625.70 : x
  2. Step 2: Convert to fraction form
    489,548.49/734,156.39 = 169,625.70/x
  3. Step 3: Cross multiply
    489,548.49x = 734,156.39 × 169,625.70
  4. Step 4: Simplify right side
    489,548.49x = 124,531,790,715.10
  5. Step 5: Solve for x
    x = 124,531,790,715.10/489,548.49
  6. Step 6: Final answer
    x = 254,380.91

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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.