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Finding the Fourth Proportional to 225,985.86, 311,859.62 and 124,013.04

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Solution

The fourth proportional to 225,985.86, 311,859.62 and 124,013.04 is: 171,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,985.86 : 311,859.62 = 124,013.04 : x
  2. Step 2: Convert to fraction form
    225,985.86/311,859.62 = 124,013.04/x
  3. Step 3: Cross multiply
    225,985.86x = 311,859.62 × 124,013.04
  4. Step 4: Simplify right side
    225,985.86x = 38,674,659,529.44
  5. Step 5: Solve for x
    x = 38,674,659,529.44/225,985.86
  6. Step 6: Final answer
    x = 171,137.52

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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.