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Finding the Fourth Proportional to 126,009.52, 188,864.02 and 87,852.44

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Solution

The fourth proportional to 126,009.52, 188,864.02 and 87,852.44 is: 131,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,009.52 : 188,864.02 = 87,852.44 : x
  2. Step 2: Convert to fraction form
    126,009.52/188,864.02 = 87,852.44/x
  3. Step 3: Cross multiply
    126,009.52x = 188,864.02 × 87,852.44
  4. Step 4: Simplify right side
    126,009.52x = 16,592,165,567.18
  5. Step 5: Solve for x
    x = 16,592,165,567.18/126,009.52
  6. Step 6: Final answer
    x = 131,673.91

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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.