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Finding the Fourth Proportional to 226,604.49, 312,707.94 and 124,629.98

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Solution

The fourth proportional to 226,604.49, 312,707.94 and 124,629.98 is: 171,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,604.49 : 312,707.94 = 124,629.98 : x
  2. Step 2: Convert to fraction form
    226,604.49/312,707.94 = 124,629.98/x
  3. Step 3: Cross multiply
    226,604.49x = 312,707.94 × 124,629.98
  4. Step 4: Simplify right side
    226,604.49x = 38,972,782,744.50
  5. Step 5: Solve for x
    x = 38,972,782,744.50/226,604.49
  6. Step 6: Final answer
    x = 171,985.92

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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.