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Finding the Fourth Proportional to 226,707.48, 312,858.72 and 124,734.29

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Solution

The fourth proportional to 226,707.48, 312,858.72 and 124,734.29 is: 172,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,707.48 : 312,858.72 = 124,734.29 : x
  2. Step 2: Convert to fraction form
    226,707.48/312,858.72 = 124,734.29/x
  3. Step 3: Cross multiply
    226,707.48x = 312,858.72 × 124,734.29
  4. Step 4: Simplify right side
    226,707.48x = 39,024,208,745.22
  5. Step 5: Solve for x
    x = 39,024,208,745.22/226,707.48
  6. Step 6: Final answer
    x = 172,134.63

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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.