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Finding the Fourth Proportional to 364.65, 546.97 and 148.23

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Solution

The fourth proportional to 364.65, 546.97 and 148.23 is: 222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.65 : 546.97 = 148.23 : x
  2. Step 2: Convert to fraction form
    364.65/546.97 = 148.23/x
  3. Step 3: Cross multiply
    364.65x = 546.97 × 148.23
  4. Step 4: Simplify right side
    364.65x = 81,077.36
  5. Step 5: Solve for x
    x = 81,077.36/364.65
  6. Step 6: Final answer
    x = 222.34

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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.