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Finding the Fourth Proportional to 127,086.01, 175,383.36 and 76,775.29

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Solution

The fourth proportional to 127,086.01, 175,383.36 and 76,775.29 is: 105,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,086.01 : 175,383.36 = 76,775.29 : x
  2. Step 2: Convert to fraction form
    127,086.01/175,383.36 = 76,775.29/x
  3. Step 3: Cross multiply
    127,086.01x = 175,383.36 × 76,775.29
  4. Step 4: Simplify right side
    127,086.01x = 13,465,107,064.38
  5. Step 5: Solve for x
    x = 13,465,107,064.38/127,086.01
  6. Step 6: Final answer
    x = 105,952.71

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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.