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Finding the Fourth Proportional to 161,692.34, 223,137.89 and 92,792.88

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Solution

The fourth proportional to 161,692.34, 223,137.89 and 92,792.88 is: 128,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,692.34 : 223,137.89 = 92,792.88 : x
  2. Step 2: Convert to fraction form
    161,692.34/223,137.89 = 92,792.88/x
  3. Step 3: Cross multiply
    161,692.34x = 223,137.89 × 92,792.88
  4. Step 4: Simplify right side
    161,692.34x = 20,705,606,986.26
  5. Step 5: Solve for x
    x = 20,705,606,986.26/161,692.34
  6. Step 6: Final answer
    x = 128,055.59

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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.