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Finding the Fourth Proportional to 149,883.60, 224,760.60 and 74,974.80

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Solution

The fourth proportional to 149,883.60, 224,760.60 and 74,974.80 is: 112,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,883.60 : 224,760.60 = 74,974.80 : x
  2. Step 2: Convert to fraction form
    149,883.60/224,760.60 = 74,974.80/x
  3. Step 3: Cross multiply
    149,883.60x = 224,760.60 × 74,974.80
  4. Step 4: Simplify right side
    149,883.60x = 16,851,381,032.88
  5. Step 5: Solve for x
    x = 16,851,381,032.88/149,883.60
  6. Step 6: Final answer
    x = 112,429.79

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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.