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Finding the Fourth Proportional to 231,161, 346,820.26 and 124,555.88

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Solution

The fourth proportional to 231,161, 346,820.26 and 124,555.88 is: 186,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,161 : 346,820.26 = 124,555.88 : x
  2. Step 2: Convert to fraction form
    231,161/346,820.26 = 124,555.88/x
  3. Step 3: Cross multiply
    231,161x = 346,820.26 × 124,555.88
  4. Step 4: Simplify right side
    231,161x = 43,198,502,686.13
  5. Step 5: Solve for x
    x = 43,198,502,686.13/231,161
  6. Step 6: Final answer
    x = 186,876.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.