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Finding the Fourth Proportional to 162,492.78, 243,739.20 and 44,181.60

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Solution

The fourth proportional to 162,492.78, 243,739.20 and 44,181.60 is: 66,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,492.78 : 243,739.20 = 44,181.60 : x
  2. Step 2: Convert to fraction form
    162,492.78/243,739.20 = 44,181.60/x
  3. Step 3: Cross multiply
    162,492.78x = 243,739.20 × 44,181.60
  4. Step 4: Simplify right side
    162,492.78x = 10,768,787,838.72
  5. Step 5: Solve for x
    x = 10,768,787,838.72/162,492.78
  6. Step 6: Final answer
    x = 66,272.41

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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.