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Finding the Fourth Proportional to 162,608.20, 243,948.15 and 48,751.48

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Solution

The fourth proportional to 162,608.20, 243,948.15 and 48,751.48 is: 73,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,608.20 : 243,948.15 = 48,751.48 : x
  2. Step 2: Convert to fraction form
    162,608.20/243,948.15 = 48,751.48/x
  3. Step 3: Cross multiply
    162,608.20x = 243,948.15 × 48,751.48
  4. Step 4: Simplify right side
    162,608.20x = 11,892,833,355.76
  5. Step 5: Solve for x
    x = 11,892,833,355.76/162,608.20
  6. Step 6: Final answer
    x = 73,137.97

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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.