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Finding the Fourth Proportional to 101,274.54, 151,944.26 and 70,911.30

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Solution

The fourth proportional to 101,274.54, 151,944.26 and 70,911.30 is: 106,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,274.54 : 151,944.26 = 70,911.30 : x
  2. Step 2: Convert to fraction form
    101,274.54/151,944.26 = 70,911.30/x
  3. Step 3: Cross multiply
    101,274.54x = 151,944.26 × 70,911.30
  4. Step 4: Simplify right side
    101,274.54x = 10,774,565,004.14
  5. Step 5: Solve for x
    x = 10,774,565,004.14/101,274.54
  6. Step 6: Final answer
    x = 106,389.67

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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.