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Finding the Fourth Proportional to 260,881.44, 391,497.53 and 92,401.17

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Solution

The fourth proportional to 260,881.44, 391,497.53 and 92,401.17 is: 138,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,881.44 : 391,497.53 = 92,401.17 : x
  2. Step 2: Convert to fraction form
    260,881.44/391,497.53 = 92,401.17/x
  3. Step 3: Cross multiply
    260,881.44x = 391,497.53 × 92,401.17
  4. Step 4: Simplify right side
    260,881.44x = 36,174,829,362.10
  5. Step 5: Solve for x
    x = 36,174,829,362.10/260,881.44
  6. Step 6: Final answer
    x = 138,663.87

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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.