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Finding the Fourth Proportional to 168,000.40, 252,292.20 and 89,268.40

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Solution

The fourth proportional to 168,000.40, 252,292.20 and 89,268.40 is: 134,057.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,000.40 : 252,292.20 = 89,268.40 : x
  2. Step 2: Convert to fraction form
    168,000.40/252,292.20 = 89,268.40/x
  3. Step 3: Cross multiply
    168,000.40x = 252,292.20 × 89,268.40
  4. Step 4: Simplify right side
    168,000.40x = 22,521,721,026.48
  5. Step 5: Solve for x
    x = 22,521,721,026.48/168,000.40
  6. Step 6: Final answer
    x = 134,057.54

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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.