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Finding the Fourth Proportional to 156.84, 235.14 and 96

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Solution

The fourth proportional to 156.84, 235.14 and 96 is: 143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.84 : 235.14 = 96 : x
  2. Step 2: Convert to fraction form
    156.84/235.14 = 96/x
  3. Step 3: Cross multiply
    156.84x = 235.14 × 96
  4. Step 4: Simplify right side
    156.84x = 22,573.44
  5. Step 5: Solve for x
    x = 22,573.44/156.84
  6. Step 6: Final answer
    x = 143.93

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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.