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Finding the Fourth Proportional to 347.97, 522 and 104.46

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Solution

The fourth proportional to 347.97, 522 and 104.46 is: 156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.97 : 522 = 104.46 : x
  2. Step 2: Convert to fraction form
    347.97/522 = 104.46/x
  3. Step 3: Cross multiply
    347.97x = 522 × 104.46
  4. Step 4: Simplify right side
    347.97x = 54,528.12
  5. Step 5: Solve for x
    x = 54,528.12/347.97
  6. Step 6: Final answer
    x = 156.70

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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.