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Finding the Fourth Proportional to 381,692.20, 572,538.30 and 195,068.20

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Solution

The fourth proportional to 381,692.20, 572,538.30 and 195,068.20 is: 292,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,692.20 : 572,538.30 = 195,068.20 : x
  2. Step 2: Convert to fraction form
    381,692.20/572,538.30 = 195,068.20/x
  3. Step 3: Cross multiply
    381,692.20x = 572,538.30 × 195,068.20
  4. Step 4: Simplify right side
    381,692.20x = 111,684,015,612.06
  5. Step 5: Solve for x
    x = 111,684,015,612.06/381,692.20
  6. Step 6: Final answer
    x = 292,602.30

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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.