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Finding the Fourth Proportional to 328,969.53, 453,979.44 and 178,066.53

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Solution

The fourth proportional to 328,969.53, 453,979.44 and 178,066.53 is: 245,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,969.53 : 453,979.44 = 178,066.53 : x
  2. Step 2: Convert to fraction form
    328,969.53/453,979.44 = 178,066.53/x
  3. Step 3: Cross multiply
    328,969.53x = 453,979.44 × 178,066.53
  4. Step 4: Simplify right side
    328,969.53x = 80,838,543,572.14
  5. Step 5: Solve for x
    x = 80,838,543,572.14/328,969.53
  6. Step 6: Final answer
    x = 245,732.62

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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.