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Finding the Fourth Proportional to 226,603.80, 312,717.06 and 124,633.80

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Solution

The fourth proportional to 226,603.80, 312,717.06 and 124,633.80 is: 171,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,603.80 : 312,717.06 = 124,633.80 : x
  2. Step 2: Convert to fraction form
    226,603.80/312,717.06 = 124,633.80/x
  3. Step 3: Cross multiply
    226,603.80x = 312,717.06 × 124,633.80
  4. Step 4: Simplify right side
    226,603.80x = 38,975,115,512.63
  5. Step 5: Solve for x
    x = 38,975,115,512.63/226,603.80
  6. Step 6: Final answer
    x = 171,996.74

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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.