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Finding the Fourth Proportional to 108,695.70, 162,824.85 and 73,266.30

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Solution

The fourth proportional to 108,695.70, 162,824.85 and 73,266.30 is: 109,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,695.70 : 162,824.85 = 73,266.30 : x
  2. Step 2: Convert to fraction form
    108,695.70/162,824.85 = 73,266.30/x
  3. Step 3: Cross multiply
    108,695.70x = 162,824.85 × 73,266.30
  4. Step 4: Simplify right side
    108,695.70x = 11,929,574,307.56
  5. Step 5: Solve for x
    x = 11,929,574,307.56/108,695.70
  6. Step 6: Final answer
    x = 109,752.04

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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.