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Finding the Fourth Proportional to 70,978.24, 97,954.08 and 40,763.44

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Solution

The fourth proportional to 70,978.24, 97,954.08 and 40,763.44 is: 56,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,978.24 : 97,954.08 = 40,763.44 : x
  2. Step 2: Convert to fraction form
    70,978.24/97,954.08 = 40,763.44/x
  3. Step 3: Cross multiply
    70,978.24x = 97,954.08 × 40,763.44
  4. Step 4: Simplify right side
    70,978.24x = 3,992,945,262.84
  5. Step 5: Solve for x
    x = 3,992,945,262.84/70,978.24
  6. Step 6: Final answer
    x = 56,255.91

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