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Finding the Fourth Proportional to 277,816.20, 416,724.30 and 248,947.80

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Solution

The fourth proportional to 277,816.20, 416,724.30 and 248,947.80 is: 373,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,816.20 : 416,724.30 = 248,947.80 : x
  2. Step 2: Convert to fraction form
    277,816.20/416,724.30 = 248,947.80/x
  3. Step 3: Cross multiply
    277,816.20x = 416,724.30 × 248,947.80
  4. Step 4: Simplify right side
    277,816.20x = 103,742,597,691.54
  5. Step 5: Solve for x
    x = 103,742,597,691.54/277,816.20
  6. Step 6: Final answer
    x = 373,421.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.