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Finding the Fourth Proportional to 267,321.52, 401,071.79 and 87,415.24

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Solution

The fourth proportional to 267,321.52, 401,071.79 and 87,415.24 is: 131,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,321.52 : 401,071.79 = 87,415.24 : x
  2. Step 2: Convert to fraction form
    267,321.52/401,071.79 = 87,415.24/x
  3. Step 3: Cross multiply
    267,321.52x = 401,071.79 × 87,415.24
  4. Step 4: Simplify right side
    267,321.52x = 35,059,786,780.08
  5. Step 5: Solve for x
    x = 35,059,786,780.08/267,321.52
  6. Step 6: Final answer
    x = 131,152.13

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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.