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Finding the Fourth Proportional to 108,747.92, 150,072.68 and 63,457.68

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Solution

The fourth proportional to 108,747.92, 150,072.68 and 63,457.68 is: 87,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,747.92 : 150,072.68 = 63,457.68 : x
  2. Step 2: Convert to fraction form
    108,747.92/150,072.68 = 63,457.68/x
  3. Step 3: Cross multiply
    108,747.92x = 150,072.68 × 63,457.68
  4. Step 4: Simplify right side
    108,747.92x = 9,523,264,104.18
  5. Step 5: Solve for x
    x = 9,523,264,104.18/108,747.92
  6. Step 6: Final answer
    x = 87,571.92

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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.