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Finding the Fourth Proportional to 220,694, 304,557.72 and 120,092.72

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Solution

The fourth proportional to 220,694, 304,557.72 and 120,092.72 is: 165,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,694 : 304,557.72 = 120,092.72 : x
  2. Step 2: Convert to fraction form
    220,694/304,557.72 = 120,092.72/x
  3. Step 3: Cross multiply
    220,694x = 304,557.72 × 120,092.72
  4. Step 4: Simplify right side
    220,694x = 36,575,164,991.80
  5. Step 5: Solve for x
    x = 36,575,164,991.80/220,694
  6. Step 6: Final answer
    x = 165,727.95

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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.