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Finding the Fourth Proportional to 220,073.16, 303,708.24 and 124,577.88

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Solution

The fourth proportional to 220,073.16, 303,708.24 and 124,577.88 is: 171,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,073.16 : 303,708.24 = 124,577.88 : x
  2. Step 2: Convert to fraction form
    220,073.16/303,708.24 = 124,577.88/x
  3. Step 3: Cross multiply
    220,073.16x = 303,708.24 × 124,577.88
  4. Step 4: Simplify right side
    220,073.16x = 37,835,328,677.73
  5. Step 5: Solve for x
    x = 37,835,328,677.73/220,073.16
  6. Step 6: Final answer
    x = 171,921.59

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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.