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Finding the Fourth Proportional to 328,397.10, 453,188.80 and 177,494.10

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Solution

The fourth proportional to 328,397.10, 453,188.80 and 177,494.10 is: 244,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,397.10 : 453,188.80 = 177,494.10 : x
  2. Step 2: Convert to fraction form
    328,397.10/453,188.80 = 177,494.10/x
  3. Step 3: Cross multiply
    328,397.10x = 453,188.80 × 177,494.10
  4. Step 4: Simplify right side
    328,397.10x = 80,438,338,186.08
  5. Step 5: Solve for x
    x = 80,438,338,186.08/328,397.10
  6. Step 6: Final answer
    x = 244,942.29

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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.