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Finding the Fourth Proportional to 328,671.30, 453,566.50 and 177,768.30

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Solution

The fourth proportional to 328,671.30, 453,566.50 and 177,768.30 is: 245,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,671.30 : 453,566.50 = 177,768.30 : x
  2. Step 2: Convert to fraction form
    328,671.30/453,566.50 = 177,768.30/x
  3. Step 3: Cross multiply
    328,671.30x = 453,566.50 × 177,768.30
  4. Step 4: Simplify right side
    328,671.30x = 80,629,745,641.95
  5. Step 5: Solve for x
    x = 80,629,745,641.95/328,671.30
  6. Step 6: Final answer
    x = 245,320.31

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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.