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Finding the Fourth Proportional to 264,697.60, 396,961.08 and 87,162.36

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Solution

The fourth proportional to 264,697.60, 396,961.08 and 87,162.36 is: 130,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,697.60 : 396,961.08 = 87,162.36 : x
  2. Step 2: Convert to fraction form
    264,697.60/396,961.08 = 87,162.36/x
  3. Step 3: Cross multiply
    264,697.60x = 396,961.08 × 87,162.36
  4. Step 4: Simplify right side
    264,697.60x = 34,600,064,560.95
  5. Step 5: Solve for x
    x = 34,600,064,560.95/264,697.60
  6. Step 6: Final answer
    x = 130,715.44

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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.