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Finding the Fourth Proportional to 156.60, 235.16 and 110.94

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Solution

The fourth proportional to 156.60, 235.16 and 110.94 is: 166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.60 : 235.16 = 110.94 : x
  2. Step 2: Convert to fraction form
    156.60/235.16 = 110.94/x
  3. Step 3: Cross multiply
    156.60x = 235.16 × 110.94
  4. Step 4: Simplify right side
    156.60x = 26,088.10
  5. Step 5: Solve for x
    x = 26,088.10/156.60
  6. Step 6: Final answer
    x = 166.59

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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.