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Finding the Fourth Proportional to 194,400.50, 268,272.69 and 104,976.50

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Solution

The fourth proportional to 194,400.50, 268,272.69 and 104,976.50 is: 144,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,400.50 : 268,272.69 = 104,976.50 : x
  2. Step 2: Convert to fraction form
    194,400.50/268,272.69 = 104,976.50/x
  3. Step 3: Cross multiply
    194,400.50x = 268,272.69 × 104,976.50
  4. Step 4: Simplify right side
    194,400.50x = 28,162,328,041.79
  5. Step 5: Solve for x
    x = 28,162,328,041.79/194,400.50
  6. Step 6: Final answer
    x = 144,867.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.