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Finding the Fourth Proportional to 276,325.50, 381,329.20 and 157,093.50

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Solution

The fourth proportional to 276,325.50, 381,329.20 and 157,093.50 is: 216,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,325.50 : 381,329.20 = 157,093.50 : x
  2. Step 2: Convert to fraction form
    276,325.50/381,329.20 = 157,093.50/x
  3. Step 3: Cross multiply
    276,325.50x = 381,329.20 × 157,093.50
  4. Step 4: Simplify right side
    276,325.50x = 59,904,338,680.20
  5. Step 5: Solve for x
    x = 59,904,338,680.20/276,325.50
  6. Step 6: Final answer
    x = 216,789.04

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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.