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Finding the Fourth Proportional to 70,255.86, 96,954.74 and 40,043.98

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Solution

The fourth proportional to 70,255.86, 96,954.74 and 40,043.98 is: 55,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,255.86 : 96,954.74 = 40,043.98 : x
  2. Step 2: Convert to fraction form
    70,255.86/96,954.74 = 40,043.98/x
  3. Step 3: Cross multiply
    70,255.86x = 96,954.74 × 40,043.98
  4. Step 4: Simplify right side
    70,255.86x = 3,882,453,669.47
  5. Step 5: Solve for x
    x = 3,882,453,669.47/70,255.86
  6. Step 6: Final answer
    x = 55,261.63

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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.