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Finding the Fourth Proportional to 123,035.52, 184,553.28 and 70,407.78

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Solution

The fourth proportional to 123,035.52, 184,553.28 and 70,407.78 is: 105,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,035.52 : 184,553.28 = 70,407.78 : x
  2. Step 2: Convert to fraction form
    123,035.52/184,553.28 = 70,407.78/x
  3. Step 3: Cross multiply
    123,035.52x = 184,553.28 × 70,407.78
  4. Step 4: Simplify right side
    123,035.52x = 12,993,986,736.52
  5. Step 5: Solve for x
    x = 12,993,986,736.52/123,035.52
  6. Step 6: Final answer
    x = 105,611.67

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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.