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Finding the Fourth Proportional to 108,701.70, 163,052.55 and 95,871.30

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Solution

The fourth proportional to 108,701.70, 163,052.55 and 95,871.30 is: 143,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,701.70 : 163,052.55 = 95,871.30 : x
  2. Step 2: Convert to fraction form
    108,701.70/163,052.55 = 95,871.30/x
  3. Step 3: Cross multiply
    108,701.70x = 163,052.55 × 95,871.30
  4. Step 4: Simplify right side
    108,701.70x = 15,632,059,936.82
  5. Step 5: Solve for x
    x = 15,632,059,936.82/108,701.70
  6. Step 6: Final answer
    x = 143,806.95

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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.