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Finding the Fourth Proportional to 85,296.58, 117,671.21 and 49,465.82

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Solution

The fourth proportional to 85,296.58, 117,671.21 and 49,465.82 is: 68,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,296.58 : 117,671.21 = 49,465.82 : x
  2. Step 2: Convert to fraction form
    85,296.58/117,671.21 = 49,465.82/x
  3. Step 3: Cross multiply
    85,296.58x = 117,671.21 × 49,465.82
  4. Step 4: Simplify right side
    85,296.58x = 5,820,702,939.89
  5. Step 5: Solve for x
    x = 5,820,702,939.89/85,296.58
  6. Step 6: Final answer
    x = 68,240.76

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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.