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Finding the Fourth Proportional to 276,673.80, 415,010.70 and 197,358.60

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Solution

The fourth proportional to 276,673.80, 415,010.70 and 197,358.60 is: 296,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,673.80 : 415,010.70 = 197,358.60 : x
  2. Step 2: Convert to fraction form
    276,673.80/415,010.70 = 197,358.60/x
  3. Step 3: Cross multiply
    276,673.80x = 415,010.70 × 197,358.60
  4. Step 4: Simplify right side
    276,673.80x = 81,905,930,737.02
  5. Step 5: Solve for x
    x = 81,905,930,737.02/276,673.80
  6. Step 6: Final answer
    x = 296,037.90

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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.