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Finding the Fourth Proportional to 348, 521.92 and 104.44

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Solution

The fourth proportional to 348, 521.92 and 104.44 is: 156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348 : 521.92 = 104.44 : x
  2. Step 2: Convert to fraction form
    348/521.92 = 104.44/x
  3. Step 3: Cross multiply
    348x = 521.92 × 104.44
  4. Step 4: Simplify right side
    348x = 54,509.32
  5. Step 5: Solve for x
    x = 54,509.32/348
  6. Step 6: Final answer
    x = 156.64

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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.