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Finding the Fourth Proportional to 150,957.49, 207,961.29 and 105,550.51

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Solution

The fourth proportional to 150,957.49, 207,961.29 and 105,550.51 is: 145,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,957.49 : 207,961.29 = 105,550.51 : x
  2. Step 2: Convert to fraction form
    150,957.49/207,961.29 = 105,550.51/x
  3. Step 3: Cross multiply
    150,957.49x = 207,961.29 × 105,550.51
  4. Step 4: Simplify right side
    150,957.49x = 21,950,419,692.01
  5. Step 5: Solve for x
    x = 21,950,419,692.01/150,957.49
  6. Step 6: Final answer
    x = 145,407.95

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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.