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Finding the Fourth Proportional to 276,710.70, 415,260.45 and 119,052.30

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Solution

The fourth proportional to 276,710.70, 415,260.45 and 119,052.30 is: 178,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,710.70 : 415,260.45 = 119,052.30 : x
  2. Step 2: Convert to fraction form
    276,710.70/415,260.45 = 119,052.30/x
  3. Step 3: Cross multiply
    276,710.70x = 415,260.45 × 119,052.30
  4. Step 4: Simplify right side
    276,710.70x = 49,437,711,671.54
  5. Step 5: Solve for x
    x = 49,437,711,671.54/276,710.70
  6. Step 6: Final answer
    x = 178,662.09

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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.