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Finding the Fourth Proportional to 108,695.70, 163,043.55 and 95,865.30

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Solution

The fourth proportional to 108,695.70, 163,043.55 and 95,865.30 is: 143,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,695.70 : 163,043.55 = 95,865.30 : x
  2. Step 2: Convert to fraction form
    108,695.70/163,043.55 = 95,865.30/x
  3. Step 3: Cross multiply
    108,695.70x = 163,043.55 × 95,865.30
  4. Step 4: Simplify right side
    108,695.70x = 15,630,218,833.82
  5. Step 5: Solve for x
    x = 15,630,218,833.82/108,695.70
  6. Step 6: Final answer
    x = 143,797.95

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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.