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Finding the Fourth Proportional to 328,538.88, 453,383.88 and 177,635.88

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Solution

The fourth proportional to 328,538.88, 453,383.88 and 177,635.88 is: 245,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,538.88 : 453,383.88 = 177,635.88 : x
  2. Step 2: Convert to fraction form
    328,538.88/453,383.88 = 177,635.88/x
  3. Step 3: Cross multiply
    328,538.88x = 453,383.88 × 177,635.88
  4. Step 4: Simplify right side
    328,538.88x = 80,537,244,501.61
  5. Step 5: Solve for x
    x = 80,537,244,501.61/328,538.88
  6. Step 6: Final answer
    x = 245,137.64

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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.