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Finding the Fourth Proportional to 128,796.10, 193,211.74 and 44,533.64

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Solution

The fourth proportional to 128,796.10, 193,211.74 and 44,533.64 is: 66,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,796.10 : 193,211.74 = 44,533.64 : x
  2. Step 2: Convert to fraction form
    128,796.10/193,211.74 = 44,533.64/x
  3. Step 3: Cross multiply
    128,796.10x = 193,211.74 × 44,533.64
  4. Step 4: Simplify right side
    128,796.10x = 8,604,422,072.93
  5. Step 5: Solve for x
    x = 8,604,422,072.93/128,796.10
  6. Step 6: Final answer
    x = 66,806.54

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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.