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Finding the Fourth Proportional to 101,954.70, 140,692.83 and 56,635.62

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Solution

The fourth proportional to 101,954.70, 140,692.83 and 56,635.62 is: 78,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,954.70 : 140,692.83 = 56,635.62 : x
  2. Step 2: Convert to fraction form
    101,954.70/140,692.83 = 56,635.62/x
  3. Step 3: Cross multiply
    101,954.70x = 140,692.83 × 56,635.62
  4. Step 4: Simplify right side
    101,954.70x = 7,968,225,656.60
  5. Step 5: Solve for x
    x = 7,968,225,656.60/101,954.70
  6. Step 6: Final answer
    x = 78,154.57

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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.