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Finding the Fourth Proportional to 111,777.40, 167,682.73 and 36,905.45

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Solution

The fourth proportional to 111,777.40, 167,682.73 and 36,905.45 is: 55,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,777.40 : 167,682.73 = 36,905.45 : x
  2. Step 2: Convert to fraction form
    111,777.40/167,682.73 = 36,905.45/x
  3. Step 3: Cross multiply
    111,777.40x = 167,682.73 × 36,905.45
  4. Step 4: Simplify right side
    111,777.40x = 6,188,406,607.88
  5. Step 5: Solve for x
    x = 6,188,406,607.88/111,777.40
  6. Step 6: Final answer
    x = 55,363.67

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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.