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Finding the Fourth Proportional to 123,801.41, 170,847.83 and 67,212.79

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Solution

The fourth proportional to 123,801.41, 170,847.83 and 67,212.79 is: 92,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,801.41 : 170,847.83 = 67,212.79 : x
  2. Step 2: Convert to fraction form
    123,801.41/170,847.83 = 67,212.79/x
  3. Step 3: Cross multiply
    123,801.41x = 170,847.83 × 67,212.79
  4. Step 4: Simplify right side
    123,801.41x = 11,483,159,319.75
  5. Step 5: Solve for x
    x = 11,483,159,319.75/123,801.41
  6. Step 6: Final answer
    x = 92,754.67

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1.5x scale

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.