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Finding the Fourth Proportional to 93.95, 140.90 and 33.04

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Solution

The fourth proportional to 93.95, 140.90 and 33.04 is: 49.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.95 : 140.90 = 33.04 : x
  2. Step 2: Convert to fraction form
    93.95/140.90 = 33.04/x
  3. Step 3: Cross multiply
    93.95x = 140.90 × 33.04
  4. Step 4: Simplify right side
    93.95x = 4,655.34
  5. Step 5: Solve for x
    x = 4,655.34/93.95
  6. Step 6: Final answer
    x = 49.55

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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.