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Finding the Fourth Proportional to 276,539.64, 381,600.21 and 154,022.67

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Solution

The fourth proportional to 276,539.64, 381,600.21 and 154,022.67 is: 212,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,539.64 : 381,600.21 = 154,022.67 : x
  2. Step 2: Convert to fraction form
    276,539.64/381,600.21 = 154,022.67/x
  3. Step 3: Cross multiply
    276,539.64x = 381,600.21 × 154,022.67
  4. Step 4: Simplify right side
    276,539.64x = 58,775,083,216.76
  5. Step 5: Solve for x
    x = 58,775,083,216.76/276,539.64
  6. Step 6: Final answer
    x = 212,537.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.