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Finding the Fourth Proportional to 146, 201.46 and 93.58

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Solution

The fourth proportional to 146, 201.46 and 93.58 is: 129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    146 : 201.46 = 93.58 : x
  2. Step 2: Convert to fraction form
    146/201.46 = 93.58/x
  3. Step 3: Cross multiply
    146x = 201.46 × 93.58
  4. Step 4: Simplify right side
    146x = 18,852.63
  5. Step 5: Solve for x
    x = 18,852.63/146
  6. Step 6: Final answer
    x = 129.13

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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.