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Finding the Fourth Proportional to 200,504.06, 300,901.77 and 161,531.90

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Solution

The fourth proportional to 200,504.06, 300,901.77 and 161,531.90 is: 242,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,504.06 : 300,901.77 = 161,531.90 : x
  2. Step 2: Convert to fraction form
    200,504.06/300,901.77 = 161,531.90/x
  3. Step 3: Cross multiply
    200,504.06x = 300,901.77 × 161,531.90
  4. Step 4: Simplify right side
    200,504.06x = 48,605,234,621.46
  5. Step 5: Solve for x
    x = 48,605,234,621.46/200,504.06
  6. Step 6: Final answer
    x = 242,415.21

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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.