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Finding the Fourth Proportional to 108,892.88, 150,288.48 and 66,476

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Solution

The fourth proportional to 108,892.88, 150,288.48 and 66,476 is: 91,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,892.88 : 150,288.48 = 66,476 : x
  2. Step 2: Convert to fraction form
    108,892.88/150,288.48 = 66,476/x
  3. Step 3: Cross multiply
    108,892.88x = 150,288.48 × 66,476
  4. Step 4: Simplify right side
    108,892.88x = 9,990,576,996.48
  5. Step 5: Solve for x
    x = 9,990,576,996.48/108,892.88
  6. Step 6: Final answer
    x = 91,746.83

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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.