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Finding the Fourth Proportional to 260,966.51, 391,511.96 and 92,501.56

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Solution

The fourth proportional to 260,966.51, 391,511.96 and 92,501.56 is: 138,774.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,966.51 : 391,511.96 = 92,501.56 : x
  2. Step 2: Convert to fraction form
    260,966.51/391,511.96 = 92,501.56/x
  3. Step 3: Cross multiply
    260,966.51x = 391,511.96 × 92,501.56
  4. Step 4: Simplify right side
    260,966.51x = 36,215,465,520.57
  5. Step 5: Solve for x
    x = 36,215,465,520.57/260,966.51
  6. Step 6: Final answer
    x = 138,774.38

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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.