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Finding the Fourth Proportional to 443,006.48, 664,647.61 and 158,699.48

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Solution

The fourth proportional to 443,006.48, 664,647.61 and 158,699.48 is: 238,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,006.48 : 664,647.61 = 158,699.48 : x
  2. Step 2: Convert to fraction form
    443,006.48/664,647.61 = 158,699.48/x
  3. Step 3: Cross multiply
    443,006.48x = 664,647.61 × 158,699.48
  4. Step 4: Simplify right side
    443,006.48x = 105,479,230,090.24
  5. Step 5: Solve for x
    x = 105,479,230,090.24/443,006.48
  6. Step 6: Final answer
    x = 238,098.62

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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.