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Finding the Fourth Proportional to 401.94, 602.76 and 158.50

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Solution

The fourth proportional to 401.94, 602.76 and 158.50 is: 237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.94 : 602.76 = 158.50 : x
  2. Step 2: Convert to fraction form
    401.94/602.76 = 158.50/x
  3. Step 3: Cross multiply
    401.94x = 602.76 × 158.50
  4. Step 4: Simplify right side
    401.94x = 95,537.46
  5. Step 5: Solve for x
    x = 95,537.46/401.94
  6. Step 6: Final answer
    x = 237.69

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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.