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Finding the Fourth Proportional to 162,059.28, 243,114.84 and 68,565.84

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Solution

The fourth proportional to 162,059.28, 243,114.84 and 68,565.84 is: 102,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,059.28 : 243,114.84 = 68,565.84 : x
  2. Step 2: Convert to fraction form
    162,059.28/243,114.84 = 68,565.84/x
  3. Step 3: Cross multiply
    162,059.28x = 243,114.84 × 68,565.84
  4. Step 4: Simplify right side
    162,059.28x = 16,669,373,221.07
  5. Step 5: Solve for x
    x = 16,669,373,221.07/162,059.28
  6. Step 6: Final answer
    x = 102,859.73

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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.