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Finding the Fourth Proportional to 168,906.68, 233,090.88 and 93,455

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Solution

The fourth proportional to 168,906.68, 233,090.88 and 93,455 is: 128,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,906.68 : 233,090.88 = 93,455 : x
  2. Step 2: Convert to fraction form
    168,906.68/233,090.88 = 93,455/x
  3. Step 3: Cross multiply
    168,906.68x = 233,090.88 × 93,455
  4. Step 4: Simplify right side
    168,906.68x = 21,783,508,190.40
  5. Step 5: Solve for x
    x = 21,783,508,190.40/168,906.68
  6. Step 6: Final answer
    x = 128,967.71

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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.