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Finding the Fourth Proportional to 374.16, 560.92 and 146

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Solution

The fourth proportional to 374.16, 560.92 and 146 is: 218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.16 : 560.92 = 146 : x
  2. Step 2: Convert to fraction form
    374.16/560.92 = 146/x
  3. Step 3: Cross multiply
    374.16x = 560.92 × 146
  4. Step 4: Simplify right side
    374.16x = 81,894.32
  5. Step 5: Solve for x
    x = 81,894.32/374.16
  6. Step 6: Final answer
    x = 218.88

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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.