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Finding the Fourth Proportional to 168,313.48, 231,990.78 and 147,843.16

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Solution

The fourth proportional to 168,313.48, 231,990.78 and 147,843.16 is: 203,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,313.48 : 231,990.78 = 147,843.16 : x
  2. Step 2: Convert to fraction form
    168,313.48/231,990.78 = 147,843.16/x
  3. Step 3: Cross multiply
    168,313.48x = 231,990.78 × 147,843.16
  4. Step 4: Simplify right side
    168,313.48x = 34,298,250,006.06
  5. Step 5: Solve for x
    x = 34,298,250,006.06/168,313.48
  6. Step 6: Final answer
    x = 203,776.01

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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.