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Finding the Fourth Proportional to 81,874.44, 112,978.74 and 46,063.68

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Solution

The fourth proportional to 81,874.44, 112,978.74 and 46,063.68 is: 63,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,874.44 : 112,978.74 = 46,063.68 : x
  2. Step 2: Convert to fraction form
    81,874.44/112,978.74 = 46,063.68/x
  3. Step 3: Cross multiply
    81,874.44x = 112,978.74 × 46,063.68
  4. Step 4: Simplify right side
    81,874.44x = 5,204,216,526.16
  5. Step 5: Solve for x
    x = 5,204,216,526.16/81,874.44
  6. Step 6: Final answer
    x = 63,563.38

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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.