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Finding the Fourth Proportional to 78,698.48, 108,591.48 and 44,236.41

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Solution

The fourth proportional to 78,698.48, 108,591.48 and 44,236.41 is: 61,039.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.48 : 108,591.48 = 44,236.41 : x
  2. Step 2: Convert to fraction form
    78,698.48/108,591.48 = 44,236.41/x
  3. Step 3: Cross multiply
    78,698.48x = 108,591.48 × 44,236.41
  4. Step 4: Simplify right side
    78,698.48x = 4,803,697,231.79
  5. Step 5: Solve for x
    x = 4,803,697,231.79/78,698.48
  6. Step 6: Final answer
    x = 61,039.27

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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.