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Finding the Fourth Proportional to 260,967.01, 391,512.71 and 92,502.06

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Solution

The fourth proportional to 260,967.01, 391,512.71 and 92,502.06 is: 138,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,967.01 : 391,512.71 = 92,502.06 : x
  2. Step 2: Convert to fraction form
    260,967.01/391,512.71 = 92,502.06/x
  3. Step 3: Cross multiply
    260,967.01x = 391,512.71 × 92,502.06
  4. Step 4: Simplify right side
    260,967.01x = 36,215,729,771.11
  5. Step 5: Solve for x
    x = 36,215,729,771.11/260,967.01
  6. Step 6: Final answer
    x = 138,775.13

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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.