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Finding the Fourth Proportional to 328,131, 452,821.08 and 177,228

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Solution

The fourth proportional to 328,131, 452,821.08 and 177,228 is: 244,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,131 : 452,821.08 = 177,228 : x
  2. Step 2: Convert to fraction form
    328,131/452,821.08 = 177,228/x
  3. Step 3: Cross multiply
    328,131x = 452,821.08 × 177,228
  4. Step 4: Simplify right side
    328,131x = 80,252,575,030.85
  5. Step 5: Solve for x
    x = 80,252,575,030.85/328,131
  6. Step 6: Final answer
    x = 244,574.80

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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.