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Finding the Fourth Proportional to 267,518.58, 400,851.36 and 141,153.72

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Solution

The fourth proportional to 267,518.58, 400,851.36 and 141,153.72 is: 211,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,518.58 : 400,851.36 = 141,153.72 : x
  2. Step 2: Convert to fraction form
    267,518.58/400,851.36 = 141,153.72/x
  3. Step 3: Cross multiply
    267,518.58x = 400,851.36 × 141,153.72
  4. Step 4: Simplify right side
    267,518.58x = 56,581,660,631.06
  5. Step 5: Solve for x
    x = 56,581,660,631.06/267,518.58
  6. Step 6: Final answer
    x = 211,505.54

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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.