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Finding the Fourth Proportional to 228,503.56, 342,771.66 and 70,711.72

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Solution

The fourth proportional to 228,503.56, 342,771.66 and 70,711.72 is: 106,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,503.56 : 342,771.66 = 70,711.72 : x
  2. Step 2: Convert to fraction form
    228,503.56/342,771.66 = 70,711.72/x
  3. Step 3: Cross multiply
    228,503.56x = 342,771.66 × 70,711.72
  4. Step 4: Simplify right side
    228,503.56x = 24,237,973,645.86
  5. Step 5: Solve for x
    x = 24,237,973,645.86/228,503.56
  6. Step 6: Final answer
    x = 106,072.63

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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.