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Finding the Fourth Proportional to 157.01, 235.46 and 92.00

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Solution

The fourth proportional to 157.01, 235.46 and 92.00 is: 137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.01 : 235.46 = 92.00 : x
  2. Step 2: Convert to fraction form
    157.01/235.46 = 92.00/x
  3. Step 3: Cross multiply
    157.01x = 235.46 × 92.00
  4. Step 4: Simplify right side
    157.01x = 21,663.14
  5. Step 5: Solve for x
    x = 21,663.14/157.01
  6. Step 6: Final answer
    x = 137.98

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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.