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Finding the Fourth Proportional to 276,107.94, 381,023.93 and 153,599.76

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Solution

The fourth proportional to 276,107.94, 381,023.93 and 153,599.76 is: 211,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,107.94 : 381,023.93 = 153,599.76 : x
  2. Step 2: Convert to fraction form
    276,107.94/381,023.93 = 153,599.76/x
  3. Step 3: Cross multiply
    276,107.94x = 381,023.93 × 153,599.76
  4. Step 4: Simplify right side
    276,107.94x = 58,525,184,586.26
  5. Step 5: Solve for x
    x = 58,525,184,586.26/276,107.94
  6. Step 6: Final answer
    x = 211,964.87

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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.