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Finding the Fourth Proportional to 128,794.96, 193,056.10 and 43,324.46

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Solution

The fourth proportional to 128,794.96, 193,056.10 and 43,324.46 is: 64,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,794.96 : 193,056.10 = 43,324.46 : x
  2. Step 2: Convert to fraction form
    128,794.96/193,056.10 = 43,324.46/x
  3. Step 3: Cross multiply
    128,794.96x = 193,056.10 × 43,324.46
  4. Step 4: Simplify right side
    128,794.96x = 8,364,051,282.21
  5. Step 5: Solve for x
    x = 8,364,051,282.21/128,794.96
  6. Step 6: Final answer
    x = 64,940.83

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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.