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Finding the Fourth Proportional to 263,810.66, 395,712.30 and 64,130.42

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Solution

The fourth proportional to 263,810.66, 395,712.30 and 64,130.42 is: 96,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,810.66 : 395,712.30 = 64,130.42 : x
  2. Step 2: Convert to fraction form
    263,810.66/395,712.30 = 64,130.42/x
  3. Step 3: Cross multiply
    263,810.66x = 395,712.30 × 64,130.42
  4. Step 4: Simplify right side
    263,810.66x = 25,377,195,998.17
  5. Step 5: Solve for x
    x = 25,377,195,998.17/263,810.66
  6. Step 6: Final answer
    x = 96,194.73

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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.