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Finding the Fourth Proportional to 331,892.88, 498,208.58 and 171,926.11

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Solution

The fourth proportional to 331,892.88, 498,208.58 and 171,926.11 is: 258,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,892.88 : 498,208.58 = 171,926.11 : x
  2. Step 2: Convert to fraction form
    331,892.88/498,208.58 = 171,926.11/x
  3. Step 3: Cross multiply
    331,892.88x = 498,208.58 × 171,926.11
  4. Step 4: Simplify right side
    331,892.88x = 85,655,063,128.02
  5. Step 5: Solve for x
    x = 85,655,063,128.02/331,892.88
  6. Step 6: Final answer
    x = 258,080.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.