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Finding the Fourth Proportional to 93,147.36, 128,540.08 and 50,704.98

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Solution

The fourth proportional to 93,147.36, 128,540.08 and 50,704.98 is: 69,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,147.36 : 128,540.08 = 50,704.98 : x
  2. Step 2: Convert to fraction form
    93,147.36/128,540.08 = 50,704.98/x
  3. Step 3: Cross multiply
    93,147.36x = 128,540.08 × 50,704.98
  4. Step 4: Simplify right side
    93,147.36x = 6,517,622,185.60
  5. Step 5: Solve for x
    x = 6,517,622,185.60/93,147.36
  6. Step 6: Final answer
    x = 69,971.09

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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.