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Finding the Fourth Proportional to 318,021.96, 476,916.30 and 93,324.72

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Solution

The fourth proportional to 318,021.96, 476,916.30 and 93,324.72 is: 139,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,021.96 : 476,916.30 = 93,324.72 : x
  2. Step 2: Convert to fraction form
    318,021.96/476,916.30 = 93,324.72/x
  3. Step 3: Cross multiply
    318,021.96x = 476,916.30 × 93,324.72
  4. Step 4: Simplify right side
    318,021.96x = 44,508,080,160.94
  5. Step 5: Solve for x
    x = 44,508,080,160.94/318,021.96
  6. Step 6: Final answer
    x = 139,952.85

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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.