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Finding the Fourth Proportional to 226,907.86, 313,140.30 and 124,943.86

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Solution

The fourth proportional to 226,907.86, 313,140.30 and 124,943.86 is: 172,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,907.86 : 313,140.30 = 124,943.86 : x
  2. Step 2: Convert to fraction form
    226,907.86/313,140.30 = 124,943.86/x
  3. Step 3: Cross multiply
    226,907.86x = 313,140.30 × 124,943.86
  4. Step 4: Simplify right side
    226,907.86x = 39,124,957,803.56
  5. Step 5: Solve for x
    x = 39,124,957,803.56/226,907.86
  6. Step 6: Final answer
    x = 172,426.63

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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.