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Finding the Fourth Proportional to 374.64, 562.05 and 118.14

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Solution

The fourth proportional to 374.64, 562.05 and 118.14 is: 177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.64 : 562.05 = 118.14 : x
  2. Step 2: Convert to fraction form
    374.64/562.05 = 118.14/x
  3. Step 3: Cross multiply
    374.64x = 562.05 × 118.14
  4. Step 4: Simplify right side
    374.64x = 66,400.59
  5. Step 5: Solve for x
    x = 66,400.59/374.64
  6. Step 6: Final answer
    x = 177.24

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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.