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Finding the Fourth Proportional to 242.93, 364.37 and 69.59

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Solution

The fourth proportional to 242.93, 364.37 and 69.59 is: 104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.93 : 364.37 = 69.59 : x
  2. Step 2: Convert to fraction form
    242.93/364.37 = 69.59/x
  3. Step 3: Cross multiply
    242.93x = 364.37 × 69.59
  4. Step 4: Simplify right side
    242.93x = 25,354.34
  5. Step 5: Solve for x
    x = 25,354.34/242.93
  6. Step 6: Final answer
    x = 104.37

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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.