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Finding the Fourth Proportional to 84,160.14, 126,119.92 and 61,798.06

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Solution

The fourth proportional to 84,160.14, 126,119.92 and 61,798.06 is: 92,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,160.14 : 126,119.92 = 61,798.06 : x
  2. Step 2: Convert to fraction form
    84,160.14/126,119.92 = 61,798.06/x
  3. Step 3: Cross multiply
    84,160.14x = 126,119.92 × 61,798.06
  4. Step 4: Simplify right side
    84,160.14x = 7,793,966,383.36
  5. Step 5: Solve for x
    x = 7,793,966,383.36/84,160.14
  6. Step 6: Final answer
    x = 92,608.76

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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.