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Finding the Fourth Proportional to 213,951.49, 320,853.32 and 62,107.39

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Solution

The fourth proportional to 213,951.49, 320,853.32 and 62,107.39 is: 93,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,951.49 : 320,853.32 = 62,107.39 : x
  2. Step 2: Convert to fraction form
    213,951.49/320,853.32 = 62,107.39/x
  3. Step 3: Cross multiply
    213,951.49x = 320,853.32 × 62,107.39
  4. Step 4: Simplify right side
    213,951.49x = 19,927,363,586.68
  5. Step 5: Solve for x
    x = 19,927,363,586.68/213,951.49
  6. Step 6: Final answer
    x = 93,139.64

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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.