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Finding the Fourth Proportional to 348.69, 522.92 and 117.53

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Solution

The fourth proportional to 348.69, 522.92 and 117.53 is: 176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.69 : 522.92 = 117.53 : x
  2. Step 2: Convert to fraction form
    348.69/522.92 = 117.53/x
  3. Step 3: Cross multiply
    348.69x = 522.92 × 117.53
  4. Step 4: Simplify right side
    348.69x = 61,456.47
  5. Step 5: Solve for x
    x = 61,456.47/348.69
  6. Step 6: Final answer
    x = 176.25

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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.