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Finding the Fourth Proportional to 224.16, 336.26 and 70.08

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Solution

The fourth proportional to 224.16, 336.26 and 70.08 is: 105.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.16 : 336.26 = 70.08 : x
  2. Step 2: Convert to fraction form
    224.16/336.26 = 70.08/x
  3. Step 3: Cross multiply
    224.16x = 336.26 × 70.08
  4. Step 4: Simplify right side
    224.16x = 23,564.75
  5. Step 5: Solve for x
    x = 23,564.75/224.16
  6. Step 6: Final answer
    x = 105.12

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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.