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Finding the Fourth Proportional to 276,722.92, 412,721.60 and 234,878.32

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Solution

The fourth proportional to 276,722.92, 412,721.60 and 234,878.32 is: 350,311.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,722.92 : 412,721.60 = 234,878.32 : x
  2. Step 2: Convert to fraction form
    276,722.92/412,721.60 = 234,878.32/x
  3. Step 3: Cross multiply
    276,722.92x = 412,721.60 × 234,878.32
  4. Step 4: Simplify right side
    276,722.92x = 96,939,356,035.71
  5. Step 5: Solve for x
    x = 96,939,356,035.71/276,722.92
  6. Step 6: Final answer
    x = 350,311.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.