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Finding the Fourth Proportional to 123,466.82, 170,383.30 and 69,750.86

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Solution

The fourth proportional to 123,466.82, 170,383.30 and 69,750.86 is: 96,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,466.82 : 170,383.30 = 69,750.86 : x
  2. Step 2: Convert to fraction form
    123,466.82/170,383.30 = 69,750.86/x
  3. Step 3: Cross multiply
    123,466.82x = 170,383.30 × 69,750.86
  4. Step 4: Simplify right side
    123,466.82x = 11,884,381,704.64
  5. Step 5: Solve for x
    x = 11,884,381,704.64/123,466.82
  6. Step 6: Final answer
    x = 96,255.67

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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.