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Finding the Fourth Proportional to 74,671.56, 103,046.73 and 41,137.56

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Solution

The fourth proportional to 74,671.56, 103,046.73 and 41,137.56 is: 56,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,671.56 : 103,046.73 = 41,137.56 : x
  2. Step 2: Convert to fraction form
    74,671.56/103,046.73 = 41,137.56/x
  3. Step 3: Cross multiply
    74,671.56x = 103,046.73 × 41,137.56
  4. Step 4: Simplify right side
    74,671.56x = 4,239,091,038.18
  5. Step 5: Solve for x
    x = 4,239,091,038.18/74,671.56
  6. Step 6: Final answer
    x = 56,769.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.