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Finding the Fourth Proportional to 116,692.83, 161,039.94 and 71,390.94

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Solution

The fourth proportional to 116,692.83, 161,039.94 and 71,390.94 is: 98,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,692.83 : 161,039.94 = 71,390.94 : x
  2. Step 2: Convert to fraction form
    116,692.83/161,039.94 = 71,390.94/x
  3. Step 3: Cross multiply
    116,692.83x = 161,039.94 × 71,390.94
  4. Step 4: Simplify right side
    116,692.83x = 11,496,792,694.14
  5. Step 5: Solve for x
    x = 11,496,792,694.14/116,692.83
  6. Step 6: Final answer
    x = 98,521.84

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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.