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Finding the Fourth Proportional to 348.42, 522.60 and 117.33

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Solution

The fourth proportional to 348.42, 522.60 and 117.33 is: 175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.42 : 522.60 = 117.33 : x
  2. Step 2: Convert to fraction form
    348.42/522.60 = 117.33/x
  3. Step 3: Cross multiply
    348.42x = 522.60 × 117.33
  4. Step 4: Simplify right side
    348.42x = 61,316.66
  5. Step 5: Solve for x
    x = 61,316.66/348.42
  6. Step 6: Final answer
    x = 175.98

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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.