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Finding the Fourth Proportional to 189,096.36, 283,693.74 and 70,776.84

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Solution

The fourth proportional to 189,096.36, 283,693.74 and 70,776.84 is: 106,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,096.36 : 283,693.74 = 70,776.84 : x
  2. Step 2: Convert to fraction form
    189,096.36/283,693.74 = 70,776.84/x
  3. Step 3: Cross multiply
    189,096.36x = 283,693.74 × 70,776.84
  4. Step 4: Simplify right side
    189,096.36x = 20,078,946,444.98
  5. Step 5: Solve for x
    x = 20,078,946,444.98/189,096.36
  6. Step 6: Final answer
    x = 106,183.68

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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.