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Finding the Fourth Proportional to 78,099.96, 117,037.74 and 44,392.77

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Solution

The fourth proportional to 78,099.96, 117,037.74 and 44,392.77 is: 66,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,099.96 : 117,037.74 = 44,392.77 : x
  2. Step 2: Convert to fraction form
    78,099.96/117,037.74 = 44,392.77/x
  3. Step 3: Cross multiply
    78,099.96x = 117,037.74 × 44,392.77
  4. Step 4: Simplify right side
    78,099.96x = 5,195,629,473.14
  5. Step 5: Solve for x
    x = 5,195,629,473.14/78,099.96
  6. Step 6: Final answer
    x = 66,525.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.