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Finding the Fourth Proportional to 311,567.96, 467,351.93 and 74,910.64

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Solution

The fourth proportional to 311,567.96, 467,351.93 and 74,910.64 is: 112,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,567.96 : 467,351.93 = 74,910.64 : x
  2. Step 2: Convert to fraction form
    311,567.96/467,351.93 = 74,910.64/x
  3. Step 3: Cross multiply
    311,567.96x = 467,351.93 × 74,910.64
  4. Step 4: Simplify right side
    311,567.96x = 35,009,632,181.54
  5. Step 5: Solve for x
    x = 35,009,632,181.54/311,567.96
  6. Step 6: Final answer
    x = 112,365.96

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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.