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Finding the Fourth Proportional to 108,750.70, 163,073.31 and 63,786.75

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Solution

The fourth proportional to 108,750.70, 163,073.31 and 63,786.75 is: 95,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,750.70 : 163,073.31 = 63,786.75 : x
  2. Step 2: Convert to fraction form
    108,750.70/163,073.31 = 63,786.75/x
  3. Step 3: Cross multiply
    108,750.70x = 163,073.31 × 63,786.75
  4. Step 4: Simplify right side
    108,750.70x = 10,401,916,173.07
  5. Step 5: Solve for x
    x = 10,401,916,173.07/108,750.70
  6. Step 6: Final answer
    x = 95,649.19

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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.