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Finding the Fourth Proportional to 168,048.47, 231,904.14 and 91,568.48

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Solution

The fourth proportional to 168,048.47, 231,904.14 and 91,568.48 is: 126,363.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,048.47 : 231,904.14 = 91,568.48 : x
  2. Step 2: Convert to fraction form
    168,048.47/231,904.14 = 91,568.48/x
  3. Step 3: Cross multiply
    168,048.47x = 231,904.14 × 91,568.48
  4. Step 4: Simplify right side
    168,048.47x = 21,235,108,445.99
  5. Step 5: Solve for x
    x = 21,235,108,445.99/168,048.47
  6. Step 6: Final answer
    x = 126,363.00

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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.