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Finding the Fourth Proportional to 276,114.91, 381,036.66 and 156,882.91

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Solution

The fourth proportional to 276,114.91, 381,036.66 and 156,882.91 is: 216,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,114.91 : 381,036.66 = 156,882.91 : x
  2. Step 2: Convert to fraction form
    276,114.91/381,036.66 = 156,882.91/x
  3. Step 3: Cross multiply
    276,114.91x = 381,036.66 × 156,882.91
  4. Step 4: Simplify right side
    276,114.91x = 59,778,140,037.48
  5. Step 5: Solve for x
    x = 59,778,140,037.48/276,114.91
  6. Step 6: Final answer
    x = 216,497.33

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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.