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Finding the Fourth Proportional to 168,090.66, 231,966.18 and 92,639.16

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Solution

The fourth proportional to 168,090.66, 231,966.18 and 92,639.16 is: 127,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,090.66 : 231,966.18 = 92,639.16 : x
  2. Step 2: Convert to fraction form
    168,090.66/231,966.18 = 92,639.16/x
  3. Step 3: Cross multiply
    168,090.66x = 231,966.18 × 92,639.16
  4. Step 4: Simplify right side
    168,090.66x = 21,489,152,063.61
  5. Step 5: Solve for x
    x = 21,489,152,063.61/168,090.66
  6. Step 6: Final answer
    x = 127,842.63

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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.