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Finding the Fourth Proportional to 362,911.81, 544,457.01 and 126,256.54

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Solution

The fourth proportional to 362,911.81, 544,457.01 and 126,256.54 is: 189,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,911.81 : 544,457.01 = 126,256.54 : x
  2. Step 2: Convert to fraction form
    362,911.81/544,457.01 = 126,256.54/x
  3. Step 3: Cross multiply
    362,911.81x = 544,457.01 × 126,256.54
  4. Step 4: Simplify right side
    362,911.81x = 68,741,258,261.35
  5. Step 5: Solve for x
    x = 68,741,258,261.35/362,911.81
  6. Step 6: Final answer
    x = 189,415.88

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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.