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Finding the Fourth Proportional to 162,620.86, 243,928.32 and 67,901.98

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Solution

The fourth proportional to 162,620.86, 243,928.32 and 67,901.98 is: 101,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,620.86 : 243,928.32 = 67,901.98 : x
  2. Step 2: Convert to fraction form
    162,620.86/243,928.32 = 67,901.98/x
  3. Step 3: Cross multiply
    162,620.86x = 243,928.32 × 67,901.98
  4. Step 4: Simplify right side
    162,620.86x = 16,563,215,906.07
  5. Step 5: Solve for x
    x = 16,563,215,906.07/162,620.86
  6. Step 6: Final answer
    x = 101,851.73

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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.