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Finding the Fourth Proportional to 93,772, 140,692.56 and 49,396.96

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Solution

The fourth proportional to 93,772, 140,692.56 and 49,396.96 is: 74,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,772 : 140,692.56 = 49,396.96 : x
  2. Step 2: Convert to fraction form
    93,772/140,692.56 = 49,396.96/x
  3. Step 3: Cross multiply
    93,772x = 140,692.56 × 49,396.96
  4. Step 4: Simplify right side
    93,772x = 6,949,784,758.62
  5. Step 5: Solve for x
    x = 6,949,784,758.62/93,772
  6. Step 6: Final answer
    x = 74,113.65

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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.