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Finding the Fourth Proportional to 61,382.70, 91,944.45 and 51,014.70

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Solution

The fourth proportional to 61,382.70, 91,944.45 and 51,014.70 is: 76,414.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,382.70 : 91,944.45 = 51,014.70 : x
  2. Step 2: Convert to fraction form
    61,382.70/91,944.45 = 51,014.70/x
  3. Step 3: Cross multiply
    61,382.70x = 91,944.45 × 51,014.70
  4. Step 4: Simplify right side
    61,382.70x = 4,690,518,533.42
  5. Step 5: Solve for x
    x = 4,690,518,533.42/61,382.70
  6. Step 6: Final answer
    x = 76,414.34

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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.