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Finding the Fourth Proportional to 108,439.68, 149,649.44 and 60,692.64

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Solution

The fourth proportional to 108,439.68, 149,649.44 and 60,692.64 is: 83,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,439.68 : 149,649.44 = 60,692.64 : x
  2. Step 2: Convert to fraction form
    108,439.68/149,649.44 = 60,692.64/x
  3. Step 3: Cross multiply
    108,439.68x = 149,649.44 × 60,692.64
  4. Step 4: Simplify right side
    108,439.68x = 9,082,619,588.12
  5. Step 5: Solve for x
    x = 9,082,619,588.12/108,439.68
  6. Step 6: Final answer
    x = 83,757.34

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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.