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Finding the Fourth Proportional to 329,930.30, 494,916.40 and 93,291.43

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Solution

The fourth proportional to 329,930.30, 494,916.40 and 93,291.43 is: 139,943.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,930.30 : 494,916.40 = 93,291.43 : x
  2. Step 2: Convert to fraction form
    329,930.30/494,916.40 = 93,291.43/x
  3. Step 3: Cross multiply
    329,930.30x = 494,916.40 × 93,291.43
  4. Step 4: Simplify right side
    329,930.30x = 46,171,458,756.13
  5. Step 5: Solve for x
    x = 46,171,458,756.13/329,930.30
  6. Step 6: Final answer
    x = 139,943.07

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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.