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Finding the Fourth Proportional to 251,011.70, 376,515.15 and 61,472.90

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Solution

The fourth proportional to 251,011.70, 376,515.15 and 61,472.90 is: 92,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,011.70 : 376,515.15 = 61,472.90 : x
  2. Step 2: Convert to fraction form
    251,011.70/376,515.15 = 61,472.90/x
  3. Step 3: Cross multiply
    251,011.70x = 376,515.15 × 61,472.90
  4. Step 4: Simplify right side
    251,011.70x = 23,145,478,164.44
  5. Step 5: Solve for x
    x = 23,145,478,164.44/251,011.70
  6. Step 6: Final answer
    x = 92,208.76

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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.