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Finding the Fourth Proportional to 228,766.14, 343,195.02 and 79,011.90

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Solution

The fourth proportional to 228,766.14, 343,195.02 and 79,011.90 is: 118,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,766.14 : 343,195.02 = 79,011.90 : x
  2. Step 2: Convert to fraction form
    228,766.14/343,195.02 = 79,011.90/x
  3. Step 3: Cross multiply
    228,766.14x = 343,195.02 × 79,011.90
  4. Step 4: Simplify right side
    228,766.14x = 27,116,490,600.74
  5. Step 5: Solve for x
    x = 27,116,490,600.74/228,766.14
  6. Step 6: Final answer
    x = 118,533.67

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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.