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Finding the Fourth Proportional to 136,063.92, 187,764.56 and 75,633.06

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Solution

The fourth proportional to 136,063.92, 187,764.56 and 75,633.06 is: 104,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,063.92 : 187,764.56 = 75,633.06 : x
  2. Step 2: Convert to fraction form
    136,063.92/187,764.56 = 75,633.06/x
  3. Step 3: Cross multiply
    136,063.92x = 187,764.56 × 75,633.06
  4. Step 4: Simplify right side
    136,063.92x = 14,201,208,232.35
  5. Step 5: Solve for x
    x = 14,201,208,232.35/136,063.92
  6. Step 6: Final answer
    x = 104,371.59

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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.