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Finding the Fourth Proportional to 226,703.22, 312,850.50 and 124,726.50

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Solution

The fourth proportional to 226,703.22, 312,850.50 and 124,726.50 is: 172,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,703.22 : 312,850.50 = 124,726.50 : x
  2. Step 2: Convert to fraction form
    226,703.22/312,850.50 = 124,726.50/x
  3. Step 3: Cross multiply
    226,703.22x = 312,850.50 × 124,726.50
  4. Step 4: Simplify right side
    226,703.22x = 39,020,747,888.25
  5. Step 5: Solve for x
    x = 39,020,747,888.25/226,703.22
  6. Step 6: Final answer
    x = 172,122.60

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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.