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Finding the Fourth Proportional to 108,191.90, 162,371.52 and 70,741.82

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Solution

The fourth proportional to 108,191.90, 162,371.52 and 70,741.82 is: 106,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,191.90 : 162,371.52 = 70,741.82 : x
  2. Step 2: Convert to fraction form
    108,191.90/162,371.52 = 70,741.82/x
  3. Step 3: Cross multiply
    108,191.90x = 162,371.52 × 70,741.82
  4. Step 4: Simplify right side
    108,191.90x = 11,486,456,840.97
  5. Step 5: Solve for x
    x = 11,486,456,840.97/108,191.90
  6. Step 6: Final answer
    x = 106,167.44

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1.5x scale

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.