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Finding the Fourth Proportional to 111,948.94, 167,989.02 and 80,324.92

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Solution

The fourth proportional to 111,948.94, 167,989.02 and 80,324.92 is: 120,534.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.94 : 167,989.02 = 80,324.92 : x
  2. Step 2: Convert to fraction form
    111,948.94/167,989.02 = 80,324.92/x
  3. Step 3: Cross multiply
    111,948.94x = 167,989.02 × 80,324.92
  4. Step 4: Simplify right side
    111,948.94x = 13,493,704,592.38
  5. Step 5: Solve for x
    x = 13,493,704,592.38/111,948.94
  6. Step 6: Final answer
    x = 120,534.46

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1.5x scale

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.