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Finding the Fourth Proportional to 267,770.58, 401,644.08 and 90,276.90

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Solution

The fourth proportional to 267,770.58, 401,644.08 and 90,276.90 is: 135,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,770.58 : 401,644.08 = 90,276.90 : x
  2. Step 2: Convert to fraction form
    267,770.58/401,644.08 = 90,276.90/x
  3. Step 3: Cross multiply
    267,770.58x = 401,644.08 × 90,276.90
  4. Step 4: Simplify right side
    267,770.58x = 36,259,182,445.75
  5. Step 5: Solve for x
    x = 36,259,182,445.75/267,770.58
  6. Step 6: Final answer
    x = 135,411.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.