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Finding the Fourth Proportional to 162,438.99, 243,630.54 and 44,119.86

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Solution

The fourth proportional to 162,438.99, 243,630.54 and 44,119.86 is: 66,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,438.99 : 243,630.54 = 44,119.86 : x
  2. Step 2: Convert to fraction form
    162,438.99/243,630.54 = 44,119.86/x
  3. Step 3: Cross multiply
    162,438.99x = 243,630.54 × 44,119.86
  4. Step 4: Simplify right side
    162,438.99x = 10,748,945,316.52
  5. Step 5: Solve for x
    x = 10,748,945,316.52/162,438.99
  6. Step 6: Final answer
    x = 66,172.20

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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.