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Finding the Fourth Proportional to 328,436.31, 453,241.91 and 177,533.31

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Solution

The fourth proportional to 328,436.31, 453,241.91 and 177,533.31 is: 244,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,436.31 : 453,241.91 = 177,533.31 : x
  2. Step 2: Convert to fraction form
    328,436.31/453,241.91 = 177,533.31/x
  3. Step 3: Cross multiply
    328,436.31x = 453,241.91 × 177,533.31
  4. Step 4: Simplify right side
    328,436.31x = 80,465,538,656.51
  5. Step 5: Solve for x
    x = 80,465,538,656.51/328,436.31
  6. Step 6: Final answer
    x = 244,995.86

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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.