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Finding the Fourth Proportional to 68,378.58, 94,288.05 and 44,460.90

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Solution

The fourth proportional to 68,378.58, 94,288.05 and 44,460.90 is: 61,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,378.58 : 94,288.05 = 44,460.90 : x
  2. Step 2: Convert to fraction form
    68,378.58/94,288.05 = 44,460.90/x
  3. Step 3: Cross multiply
    68,378.58x = 94,288.05 × 44,460.90
  4. Step 4: Simplify right side
    68,378.58x = 4,192,131,562.25
  5. Step 5: Solve for x
    x = 4,192,131,562.25/68,378.58
  6. Step 6: Final answer
    x = 61,307.67

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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.