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Finding the Fourth Proportional to 328,743.56, 453,666.12 and 177,840.56

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Solution

The fourth proportional to 328,743.56, 453,666.12 and 177,840.56 is: 245,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,743.56 : 453,666.12 = 177,840.56 : x
  2. Step 2: Convert to fraction form
    328,743.56/453,666.12 = 177,840.56/x
  3. Step 3: Cross multiply
    328,743.56x = 453,666.12 × 177,840.56
  4. Step 4: Simplify right side
    328,743.56x = 80,680,237,301.09
  5. Step 5: Solve for x
    x = 80,680,237,301.09/328,743.56
  6. Step 6: Final answer
    x = 245,419.98

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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.