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Finding the Fourth Proportional to 364.42, 546.63 and 117.62

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Solution

The fourth proportional to 364.42, 546.63 and 117.62 is: 176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.42 : 546.63 = 117.62 : x
  2. Step 2: Convert to fraction form
    364.42/546.63 = 117.62/x
  3. Step 3: Cross multiply
    364.42x = 546.63 × 117.62
  4. Step 4: Simplify right side
    364.42x = 64,291.30
  5. Step 5: Solve for x
    x = 64,291.30/364.42
  6. Step 6: Final answer
    x = 176.42

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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.