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Finding the Fourth Proportional to 223,149.49, 307,940.78 and 127,650.04

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Solution

The fourth proportional to 223,149.49, 307,940.78 and 127,650.04 is: 176,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,149.49 : 307,940.78 = 127,650.04 : x
  2. Step 2: Convert to fraction form
    223,149.49/307,940.78 = 127,650.04/x
  3. Step 3: Cross multiply
    223,149.49x = 307,940.78 × 127,650.04
  4. Step 4: Simplify right side
    223,149.49x = 39,308,652,884.63
  5. Step 5: Solve for x
    x = 39,308,652,884.63/223,149.49
  6. Step 6: Final answer
    x = 176,153.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.