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Finding the Fourth Proportional to 235,233.50, 352,910.20 and 69,021.50

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Solution

The fourth proportional to 235,233.50, 352,910.20 and 69,021.50 is: 103,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,233.50 : 352,910.20 = 69,021.50 : x
  2. Step 2: Convert to fraction form
    235,233.50/352,910.20 = 69,021.50/x
  3. Step 3: Cross multiply
    235,233.50x = 352,910.20 × 69,021.50
  4. Step 4: Simplify right side
    235,233.50x = 24,358,391,369.30
  5. Step 5: Solve for x
    x = 24,358,391,369.30/235,233.50
  6. Step 6: Final answer
    x = 103,549.84

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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.