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Finding the Fourth Proportional to 192,318.48, 265,409.69 and 115,861.64

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Solution

The fourth proportional to 192,318.48, 265,409.69 and 115,861.64 is: 159,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,318.48 : 265,409.69 = 115,861.64 : x
  2. Step 2: Convert to fraction form
    192,318.48/265,409.69 = 115,861.64/x
  3. Step 3: Cross multiply
    192,318.48x = 265,409.69 × 115,861.64
  4. Step 4: Simplify right side
    192,318.48x = 30,750,801,867.73
  5. Step 5: Solve for x
    x = 30,750,801,867.73/192,318.48
  6. Step 6: Final answer
    x = 159,895.20

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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.