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Finding the Fourth Proportional to 135,673.92, 187,228.80 and 76,057.92

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Solution

The fourth proportional to 135,673.92, 187,228.80 and 76,057.92 is: 104,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,673.92 : 187,228.80 = 76,057.92 : x
  2. Step 2: Convert to fraction form
    135,673.92/187,228.80 = 76,057.92/x
  3. Step 3: Cross multiply
    135,673.92x = 187,228.80 × 76,057.92
  4. Step 4: Simplify right side
    135,673.92x = 14,240,233,092.10
  5. Step 5: Solve for x
    x = 14,240,233,092.10/135,673.92
  6. Step 6: Final answer
    x = 104,959.25

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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.