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Finding the Fourth Proportional to 189,152.80, 283,729.20 and 187,840.60

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Solution

The fourth proportional to 189,152.80, 283,729.20 and 187,840.60 is: 281,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,152.80 : 283,729.20 = 187,840.60 : x
  2. Step 2: Convert to fraction form
    189,152.80/283,729.20 = 187,840.60/x
  3. Step 3: Cross multiply
    189,152.80x = 283,729.20 × 187,840.60
  4. Step 4: Simplify right side
    189,152.80x = 53,295,863,165.52
  5. Step 5: Solve for x
    x = 53,295,863,165.52/189,152.80
  6. Step 6: Final answer
    x = 281,760.90

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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.