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Finding the Fourth Proportional to 253,387.62, 379,324.22 and 153,244.89

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Solution

The fourth proportional to 253,387.62, 379,324.22 and 153,244.89 is: 229,409.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,387.62 : 379,324.22 = 153,244.89 : x
  2. Step 2: Convert to fraction form
    253,387.62/379,324.22 = 153,244.89/x
  3. Step 3: Cross multiply
    253,387.62x = 379,324.22 × 153,244.89
  4. Step 4: Simplify right side
    253,387.62x = 58,129,497,602.01
  5. Step 5: Solve for x
    x = 58,129,497,602.01/253,387.62
  6. Step 6: Final answer
    x = 229,409.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.