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Finding the Fourth Proportional to 265,046.52, 397,484.94 and 87,520.44

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Solution

The fourth proportional to 265,046.52, 397,484.94 and 87,520.44 is: 131,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,046.52 : 397,484.94 = 87,520.44 : x
  2. Step 2: Convert to fraction form
    265,046.52/397,484.94 = 87,520.44/x
  3. Step 3: Cross multiply
    265,046.52x = 397,484.94 × 87,520.44
  4. Step 4: Simplify right side
    265,046.52x = 34,788,056,842.17
  5. Step 5: Solve for x
    x = 34,788,056,842.17/265,046.52
  6. Step 6: Final answer
    x = 131,252.65

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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.