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Finding the Fourth Proportional to 168,060.40, 252,382.20 and 89,328.40

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Solution

The fourth proportional to 168,060.40, 252,382.20 and 89,328.40 is: 134,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,060.40 : 252,382.20 = 89,328.40 : x
  2. Step 2: Convert to fraction form
    168,060.40/252,382.20 = 89,328.40/x
  3. Step 3: Cross multiply
    168,060.40x = 252,382.20 × 89,328.40
  4. Step 4: Simplify right side
    168,060.40x = 22,544,898,114.48
  5. Step 5: Solve for x
    x = 22,544,898,114.48/168,060.40
  6. Step 6: Final answer
    x = 134,147.59

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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.