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Finding the Fourth Proportional to 188.98, 260.59 and 174.10

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Solution

The fourth proportional to 188.98, 260.59 and 174.10 is: 240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.98 : 260.59 = 174.10 : x
  2. Step 2: Convert to fraction form
    188.98/260.59 = 174.10/x
  3. Step 3: Cross multiply
    188.98x = 260.59 × 174.10
  4. Step 4: Simplify right side
    188.98x = 45,368.72
  5. Step 5: Solve for x
    x = 45,368.72/188.98
  6. Step 6: Final answer
    x = 240.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.