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Finding the Fourth Proportional to 215,758.44, 297,734.28 and 120,261.84

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Solution

The fourth proportional to 215,758.44, 297,734.28 and 120,261.84 is: 165,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,758.44 : 297,734.28 = 120,261.84 : x
  2. Step 2: Convert to fraction form
    215,758.44/297,734.28 = 120,261.84/x
  3. Step 3: Cross multiply
    215,758.44x = 297,734.28 × 120,261.84
  4. Step 4: Simplify right side
    215,758.44x = 35,806,072,343.88
  5. Step 5: Solve for x
    x = 35,806,072,343.88/215,758.44
  6. Step 6: Final answer
    x = 165,954.45

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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.