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Finding the Fourth Proportional to 108,766.40, 150,099.09 and 61,016.90

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Solution

The fourth proportional to 108,766.40, 150,099.09 and 61,016.90 is: 84,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,766.40 : 150,099.09 = 61,016.90 : x
  2. Step 2: Convert to fraction form
    108,766.40/150,099.09 = 61,016.90/x
  3. Step 3: Cross multiply
    108,766.40x = 150,099.09 × 61,016.90
  4. Step 4: Simplify right side
    108,766.40x = 9,158,581,164.62
  5. Step 5: Solve for x
    x = 9,158,581,164.62/108,766.40
  6. Step 6: Final answer
    x = 84,204.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.