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Finding the Fourth Proportional to 220,593.64, 304,408.11 and 125,109.22

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Solution

The fourth proportional to 220,593.64, 304,408.11 and 125,109.22 is: 172,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,593.64 : 304,408.11 = 125,109.22 : x
  2. Step 2: Convert to fraction form
    220,593.64/304,408.11 = 125,109.22/x
  3. Step 3: Cross multiply
    220,593.64x = 304,408.11 × 125,109.22
  4. Step 4: Simplify right side
    220,593.64x = 38,084,261,203.77
  5. Step 5: Solve for x
    x = 38,084,261,203.77/220,593.64
  6. Step 6: Final answer
    x = 172,644.42

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1.5x scale

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.