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Finding the Fourth Proportional to 215,274.80, 322,912.20 and 168,567.60

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Solution

The fourth proportional to 215,274.80, 322,912.20 and 168,567.60 is: 252,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,274.80 : 322,912.20 = 168,567.60 : x
  2. Step 2: Convert to fraction form
    215,274.80/322,912.20 = 168,567.60/x
  3. Step 3: Cross multiply
    215,274.80x = 322,912.20 × 168,567.60
  4. Step 4: Simplify right side
    215,274.80x = 54,432,534,564.72
  5. Step 5: Solve for x
    x = 54,432,534,564.72/215,274.80
  6. Step 6: Final answer
    x = 252,851.40

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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.