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Finding the Fourth Proportional to 101,960.48, 140,727.95 and 56,654.03

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Solution

The fourth proportional to 101,960.48, 140,727.95 and 56,654.03 is: 78,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,960.48 : 140,727.95 = 56,654.03 : x
  2. Step 2: Convert to fraction form
    101,960.48/140,727.95 = 56,654.03/x
  3. Step 3: Cross multiply
    101,960.48x = 140,727.95 × 56,654.03
  4. Step 4: Simplify right side
    101,960.48x = 7,972,804,514.23
  5. Step 5: Solve for x
    x = 7,972,804,514.23/101,960.48
  6. Step 6: Final answer
    x = 78,195.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.