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Finding the Fourth Proportional to 162,405.80, 243,608.70 and 44,091.80

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Solution

The fourth proportional to 162,405.80, 243,608.70 and 44,091.80 is: 66,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,405.80 : 243,608.70 = 44,091.80 : x
  2. Step 2: Convert to fraction form
    162,405.80/243,608.70 = 44,091.80/x
  3. Step 3: Cross multiply
    162,405.80x = 243,608.70 × 44,091.80
  4. Step 4: Simplify right side
    162,405.80x = 10,741,146,078.66
  5. Step 5: Solve for x
    x = 10,741,146,078.66/162,405.80
  6. Step 6: Final answer
    x = 66,137.70

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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.