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Finding the Fourth Proportional to 328,925.70, 453,917.43 and 178,022.70

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Solution

The fourth proportional to 328,925.70, 453,917.43 and 178,022.70 is: 245,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,925.70 : 453,917.43 = 178,022.70 : x
  2. Step 2: Convert to fraction form
    328,925.70/453,917.43 = 178,022.70/x
  3. Step 3: Cross multiply
    328,925.70x = 453,917.43 × 178,022.70
  4. Step 4: Simplify right side
    328,925.70x = 80,807,606,465.66
  5. Step 5: Solve for x
    x = 80,807,606,465.66/328,925.70
  6. Step 6: Final answer
    x = 245,671.31

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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.