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Finding the Fourth Proportional to 220,074.84, 303,705.72 and 124,579.44

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Solution

The fourth proportional to 220,074.84, 303,705.72 and 124,579.44 is: 171,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,074.84 : 303,705.72 = 124,579.44 : x
  2. Step 2: Convert to fraction form
    220,074.84/303,705.72 = 124,579.44/x
  3. Step 3: Cross multiply
    220,074.84x = 303,705.72 × 124,579.44
  4. Step 4: Simplify right side
    220,074.84x = 37,835,488,522.40
  5. Step 5: Solve for x
    x = 37,835,488,522.40/220,074.84
  6. Step 6: Final answer
    x = 171,921.01

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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.