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Finding the Fourth Proportional to 195,511.50, 269,805.87 and 106,087.50

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Solution

The fourth proportional to 195,511.50, 269,805.87 and 106,087.50 is: 146,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,511.50 : 269,805.87 = 106,087.50 : x
  2. Step 2: Convert to fraction form
    195,511.50/269,805.87 = 106,087.50/x
  3. Step 3: Cross multiply
    195,511.50x = 269,805.87 × 106,087.50
  4. Step 4: Simplify right side
    195,511.50x = 28,623,030,233.63
  5. Step 5: Solve for x
    x = 28,623,030,233.63/195,511.50
  6. Step 6: Final answer
    x = 146,400.75

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1.5x scale

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.