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Finding the Fourth Proportional to 233.48, 349.59 and 117.64

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Solution

The fourth proportional to 233.48, 349.59 and 117.64 is: 176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.48 : 349.59 = 117.64 : x
  2. Step 2: Convert to fraction form
    233.48/349.59 = 117.64/x
  3. Step 3: Cross multiply
    233.48x = 349.59 × 117.64
  4. Step 4: Simplify right side
    233.48x = 41,124.35
  5. Step 5: Solve for x
    x = 41,124.35/233.48
  6. Step 6: Final answer
    x = 176.13

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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.