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Finding the Fourth Proportional to 121,628.34, 167,750.73 and 73,880.73

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Solution

The fourth proportional to 121,628.34, 167,750.73 and 73,880.73 is: 101,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,628.34 : 167,750.73 = 73,880.73 : x
  2. Step 2: Convert to fraction form
    121,628.34/167,750.73 = 73,880.73/x
  3. Step 3: Cross multiply
    121,628.34x = 167,750.73 × 73,880.73
  4. Step 4: Simplify right side
    121,628.34x = 12,393,546,390.43
  5. Step 5: Solve for x
    x = 12,393,546,390.43/121,628.34
  6. Step 6: Final answer
    x = 101,896.86

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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.