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Finding the Fourth Proportional to 192,481.61, 265,624.11 and 105,266.75

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Solution

The fourth proportional to 192,481.61, 265,624.11 and 105,266.75 is: 145,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,481.61 : 265,624.11 = 105,266.75 : x
  2. Step 2: Convert to fraction form
    192,481.61/265,624.11 = 105,266.75/x
  3. Step 3: Cross multiply
    192,481.61x = 265,624.11 × 105,266.75
  4. Step 4: Simplify right side
    192,481.61x = 27,961,385,453.22
  5. Step 5: Solve for x
    x = 27,961,385,453.22/192,481.61
  6. Step 6: Final answer
    x = 145,267.83

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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.