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Finding the Fourth Proportional to 393,180.50, 589,770.84 and 97,692.50

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Solution

The fourth proportional to 393,180.50, 589,770.84 and 97,692.50 is: 146,538.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,180.50 : 589,770.84 = 97,692.50 : x
  2. Step 2: Convert to fraction form
    393,180.50/589,770.84 = 97,692.50/x
  3. Step 3: Cross multiply
    393,180.50x = 589,770.84 × 97,692.50
  4. Step 4: Simplify right side
    393,180.50x = 57,616,187,786.70
  5. Step 5: Solve for x
    x = 57,616,187,786.70/393,180.50
  6. Step 6: Final answer
    x = 146,538.77

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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.