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Finding the Fourth Proportional to 127,663.92, 191,515.44 and 44,538.48

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Solution

The fourth proportional to 127,663.92, 191,515.44 and 44,538.48 is: 66,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,663.92 : 191,515.44 = 44,538.48 : x
  2. Step 2: Convert to fraction form
    127,663.92/191,515.44 = 44,538.48/x
  3. Step 3: Cross multiply
    127,663.92x = 191,515.44 × 44,538.48
  4. Step 4: Simplify right side
    127,663.92x = 8,529,806,594.13
  5. Step 5: Solve for x
    x = 8,529,806,594.13/127,663.92
  6. Step 6: Final answer
    x = 66,814.54

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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.