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Finding the Fourth Proportional to 93, 139.45 and 44.24

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Solution

The fourth proportional to 93, 139.45 and 44.24 is: 66.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93 : 139.45 = 44.24 : x
  2. Step 2: Convert to fraction form
    93/139.45 = 44.24/x
  3. Step 3: Cross multiply
    93x = 139.45 × 44.24
  4. Step 4: Simplify right side
    93x = 6,169.27
  5. Step 5: Solve for x
    x = 6,169.27/93
  6. Step 6: Final answer
    x = 66.34

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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.