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Finding the Fourth Proportional to 234,130.50, 351,254.07 and 67,918.50

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Solution

The fourth proportional to 234,130.50, 351,254.07 and 67,918.50 is: 101,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,130.50 : 351,254.07 = 67,918.50 : x
  2. Step 2: Convert to fraction form
    234,130.50/351,254.07 = 67,918.50/x
  3. Step 3: Cross multiply
    234,130.50x = 351,254.07 × 67,918.50
  4. Step 4: Simplify right side
    234,130.50x = 23,856,649,553.30
  5. Step 5: Solve for x
    x = 23,856,649,553.30/234,130.50
  6. Step 6: Final answer
    x = 101,894.67

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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.