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Finding the Fourth Proportional to 78,260.94, 107,993.52 and 44,267.67

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Solution

The fourth proportional to 78,260.94, 107,993.52 and 44,267.67 is: 61,085.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,260.94 : 107,993.52 = 44,267.67 : x
  2. Step 2: Convert to fraction form
    78,260.94/107,993.52 = 44,267.67/x
  3. Step 3: Cross multiply
    78,260.94x = 107,993.52 × 44,267.67
  4. Step 4: Simplify right side
    78,260.94x = 4,780,621,505.50
  5. Step 5: Solve for x
    x = 4,780,621,505.50/78,260.94
  6. Step 6: Final answer
    x = 61,085.66

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1.5x scale

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.