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Finding the Fourth Proportional to 351,266.69, 526,918.70 and 111,399.50

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Solution

The fourth proportional to 351,266.69, 526,918.70 and 111,399.50 is: 167,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,266.69 : 526,918.70 = 111,399.50 : x
  2. Step 2: Convert to fraction form
    351,266.69/526,918.70 = 111,399.50/x
  3. Step 3: Cross multiply
    351,266.69x = 526,918.70 × 111,399.50
  4. Step 4: Simplify right side
    351,266.69x = 58,698,481,316.45
  5. Step 5: Solve for x
    x = 58,698,481,316.45/351,266.69
  6. Step 6: Final answer
    x = 167,105.17

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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.