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Finding the Fourth Proportional to 220,937.88, 304,894.17 and 120,335.88

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Solution

The fourth proportional to 220,937.88, 304,894.17 and 120,335.88 is: 166,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,937.88 : 304,894.17 = 120,335.88 : x
  2. Step 2: Convert to fraction form
    220,937.88/304,894.17 = 120,335.88/x
  3. Step 3: Cross multiply
    220,937.88x = 304,894.17 × 120,335.88
  4. Step 4: Simplify right side
    220,937.88x = 36,689,708,253.82
  5. Step 5: Solve for x
    x = 36,689,708,253.82/220,937.88
  6. Step 6: Final answer
    x = 166,063.46

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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.