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Finding the Fourth Proportional to 226,419.88, 312,462.68 and 124,454.77

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Solution

The fourth proportional to 226,419.88, 312,462.68 and 124,454.77 is: 171,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,419.88 : 312,462.68 = 124,454.77 : x
  2. Step 2: Convert to fraction form
    226,419.88/312,462.68 = 124,454.77/x
  3. Step 3: Cross multiply
    226,419.88x = 312,462.68 × 124,454.77
  4. Step 4: Simplify right side
    226,419.88x = 38,887,470,972.98
  5. Step 5: Solve for x
    x = 38,887,470,972.98/226,419.88
  6. Step 6: Final answer
    x = 171,749.37

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1.5x scale

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.