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Finding the Fourth Proportional to 226,603.99, 312,707.25 and 124,629.47

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Solution

The fourth proportional to 226,603.99, 312,707.25 and 124,629.47 is: 171,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,603.99 : 312,707.25 = 124,629.47 : x
  2. Step 2: Convert to fraction form
    226,603.99/312,707.25 = 124,629.47/x
  3. Step 3: Cross multiply
    226,603.99x = 312,707.25 × 124,629.47
  4. Step 4: Simplify right side
    226,603.99x = 38,972,538,832.66
  5. Step 5: Solve for x
    x = 38,972,538,832.66/226,603.99
  6. Step 6: Final answer
    x = 171,985.23

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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.