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Finding the Fourth Proportional to 260,746.48, 391,119.72 and 136,058.32

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Solution

The fourth proportional to 260,746.48, 391,119.72 and 136,058.32 is: 204,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,746.48 : 391,119.72 = 136,058.32 : x
  2. Step 2: Convert to fraction form
    260,746.48/391,119.72 = 136,058.32/x
  3. Step 3: Cross multiply
    260,746.48x = 391,119.72 × 136,058.32
  4. Step 4: Simplify right side
    260,746.48x = 53,215,092,022.07
  5. Step 5: Solve for x
    x = 53,215,092,022.07/260,746.48
  6. Step 6: Final answer
    x = 204,087.48

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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.