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Finding the Fourth Proportional to 162,425.94, 243,475.36 and 67,708.57

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Solution

The fourth proportional to 162,425.94, 243,475.36 and 67,708.57 is: 101,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,425.94 : 243,475.36 = 67,708.57 : x
  2. Step 2: Convert to fraction form
    162,425.94/243,475.36 = 67,708.57/x
  3. Step 3: Cross multiply
    162,425.94x = 243,475.36 × 67,708.57
  4. Step 4: Simplify right side
    162,425.94x = 16,485,367,677.88
  5. Step 5: Solve for x
    x = 16,485,367,677.88/162,425.94
  6. Step 6: Final answer
    x = 101,494.67

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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.