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Finding the Fourth Proportional to 121,352.34, 167,467.00 and 67,640.76

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Solution

The fourth proportional to 121,352.34, 167,467.00 and 67,640.76 is: 93,344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,352.34 : 167,467.00 = 67,640.76 : x
  2. Step 2: Convert to fraction form
    121,352.34/167,467.00 = 67,640.76/x
  3. Step 3: Cross multiply
    121,352.34x = 167,467.00 × 67,640.76
  4. Step 4: Simplify right side
    121,352.34x = 11,327,595,324.02
  5. Step 5: Solve for x
    x = 11,327,595,324.02/121,352.34
  6. Step 6: Final answer
    x = 93,344.68

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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.