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Finding the Fourth Proportional to 267,659.60, 401,028.60 and 141,112.40

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Solution

The fourth proportional to 267,659.60, 401,028.60 and 141,112.40 is: 211,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,659.60 : 401,028.60 = 141,112.40 : x
  2. Step 2: Convert to fraction form
    267,659.60/401,028.60 = 141,112.40/x
  3. Step 3: Cross multiply
    267,659.60x = 401,028.60 × 141,112.40
  4. Step 4: Simplify right side
    267,659.60x = 56,590,108,214.64
  5. Step 5: Solve for x
    x = 56,590,108,214.64/267,659.60
  6. Step 6: Final answer
    x = 211,425.66

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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.