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Finding the Fourth Proportional to 374.10, 561.06 and 236.95

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Solution

The fourth proportional to 374.10, 561.06 and 236.95 is: 355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.10 : 561.06 = 236.95 : x
  2. Step 2: Convert to fraction form
    374.10/561.06 = 236.95/x
  3. Step 3: Cross multiply
    374.10x = 561.06 × 236.95
  4. Step 4: Simplify right side
    374.10x = 132,941.76
  5. Step 5: Solve for x
    x = 132,941.76/374.10
  6. Step 6: Final answer
    x = 355.37

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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.