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Finding the Fourth Proportional to 127,305.44, 191,074.80 and 126,829.16

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Solution

The fourth proportional to 127,305.44, 191,074.80 and 126,829.16 is: 190,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.44 : 191,074.80 = 126,829.16 : x
  2. Step 2: Convert to fraction form
    127,305.44/191,074.80 = 126,829.16/x
  3. Step 3: Cross multiply
    127,305.44x = 191,074.80 × 126,829.16
  4. Step 4: Simplify right side
    127,305.44x = 24,233,856,381.17
  5. Step 5: Solve for x
    x = 24,233,856,381.17/127,305.44
  6. Step 6: Final answer
    x = 190,359.94

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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.