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Finding the Fourth Proportional to 328,418.11, 453,216.72 and 177,515.11

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Solution

The fourth proportional to 328,418.11, 453,216.72 and 177,515.11 is: 244,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,418.11 : 453,216.72 = 177,515.11 : x
  2. Step 2: Convert to fraction form
    328,418.11/453,216.72 = 177,515.11/x
  3. Step 3: Cross multiply
    328,418.11x = 453,216.72 × 177,515.11
  4. Step 4: Simplify right side
    328,418.11x = 80,452,815,904.64
  5. Step 5: Solve for x
    x = 80,452,815,904.64/328,418.11
  6. Step 6: Final answer
    x = 244,970.70

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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.