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Finding the Fourth Proportional to 78,698.75, 108,600.59 and 44,706.39

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Solution

The fourth proportional to 78,698.75, 108,600.59 and 44,706.39 is: 61,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.75 : 108,600.59 = 44,706.39 : x
  2. Step 2: Convert to fraction form
    78,698.75/108,600.59 = 44,706.39/x
  3. Step 3: Cross multiply
    78,698.75x = 108,600.59 × 44,706.39
  4. Step 4: Simplify right side
    78,698.75x = 4,855,140,107.24
  5. Step 5: Solve for x
    x = 4,855,140,107.24/78,698.75
  6. Step 6: Final answer
    x = 61,692.73

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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.