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Finding the Fourth Proportional to 220,775.68, 304,672.32 and 120,173.44

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Solution

The fourth proportional to 220,775.68, 304,672.32 and 120,173.44 is: 165,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,775.68 : 304,672.32 = 120,173.44 : x
  2. Step 2: Convert to fraction form
    220,775.68/304,672.32 = 120,173.44/x
  3. Step 3: Cross multiply
    220,775.68x = 304,672.32 × 120,173.44
  4. Step 4: Simplify right side
    220,775.68x = 36,613,520,767.18
  5. Step 5: Solve for x
    x = 36,613,520,767.18/220,775.68
  6. Step 6: Final answer
    x = 165,840.37

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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.