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Finding the Fourth Proportional to 351,693.98, 527,736.43 and 171,781.45

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Solution

The fourth proportional to 351,693.98, 527,736.43 and 171,781.45 is: 257,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,693.98 : 527,736.43 = 171,781.45 : x
  2. Step 2: Convert to fraction form
    351,693.98/527,736.43 = 171,781.45/x
  3. Step 3: Cross multiply
    351,693.98x = 527,736.43 × 171,781.45
  4. Step 4: Simplify right side
    351,693.98x = 90,655,326,591.78
  5. Step 5: Solve for x
    x = 90,655,326,591.78/351,693.98
  6. Step 6: Final answer
    x = 257,767.64

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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.