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Finding the Fourth Proportional to 192,749.92, 266,078.30 and 145,015.00

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Solution

The fourth proportional to 192,749.92, 266,078.30 and 145,015.00 is: 200,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,749.92 : 266,078.30 = 145,015.00 : x
  2. Step 2: Convert to fraction form
    192,749.92/266,078.30 = 145,015.00/x
  3. Step 3: Cross multiply
    192,749.92x = 266,078.30 × 145,015.00
  4. Step 4: Simplify right side
    192,749.92x = 38,585,343,284.23
  5. Step 5: Solve for x
    x = 38,585,343,284.23/192,749.92
  6. Step 6: Final answer
    x = 200,183.45

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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.