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Finding the Fourth Proportional to 164,090.54, 246,135.78 and 39,431.54

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Solution

The fourth proportional to 164,090.54, 246,135.78 and 39,431.54 is: 59,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,090.54 : 246,135.78 = 39,431.54 : x
  2. Step 2: Convert to fraction form
    164,090.54/246,135.78 = 39,431.54/x
  3. Step 3: Cross multiply
    164,090.54x = 246,135.78 × 39,431.54
  4. Step 4: Simplify right side
    164,090.54x = 9,705,512,854.50
  5. Step 5: Solve for x
    x = 9,705,512,854.50/164,090.54
  6. Step 6: Final answer
    x = 59,147.30

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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.