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Finding the Fourth Proportional to 78,851.94, 108,811.87 and 44,857.23

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Solution

The fourth proportional to 78,851.94, 108,811.87 and 44,857.23 is: 61,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.94 : 108,811.87 = 44,857.23 : x
  2. Step 2: Convert to fraction form
    78,851.94/108,811.87 = 44,857.23/x
  3. Step 3: Cross multiply
    78,851.94x = 108,811.87 × 44,857.23
  4. Step 4: Simplify right side
    78,851.94x = 4,880,998,811.45
  5. Step 5: Solve for x
    x = 4,880,998,811.45/78,851.94
  6. Step 6: Final answer
    x = 61,900.81

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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.