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Finding the Fourth Proportional to 220,074.16, 303,709.62 and 124,578.88

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Solution

The fourth proportional to 220,074.16, 303,709.62 and 124,578.88 is: 171,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,074.16 : 303,709.62 = 124,578.88 : x
  2. Step 2: Convert to fraction form
    220,074.16/303,709.62 = 124,578.88/x
  3. Step 3: Cross multiply
    220,074.16x = 303,709.62 × 124,578.88
  4. Step 4: Simplify right side
    220,074.16x = 37,835,804,304.83
  5. Step 5: Solve for x
    x = 37,835,804,304.83/220,074.16
  6. Step 6: Final answer
    x = 171,922.97

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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.