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Finding the Fourth Proportional to 192,059.80, 288,051.30 and 92,219.80

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Solution

The fourth proportional to 192,059.80, 288,051.30 and 92,219.80 is: 138,311.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,059.80 : 288,051.30 = 92,219.80 : x
  2. Step 2: Convert to fraction form
    192,059.80/288,051.30 = 92,219.80/x
  3. Step 3: Cross multiply
    192,059.80x = 288,051.30 × 92,219.80
  4. Step 4: Simplify right side
    192,059.80x = 26,564,033,275.74
  5. Step 5: Solve for x
    x = 26,564,033,275.74/192,059.80
  6. Step 6: Final answer
    x = 138,311.26

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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.