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Finding the Fourth Proportional to 108,426.44, 149,635.08 and 60,678.80

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Solution

The fourth proportional to 108,426.44, 149,635.08 and 60,678.80 is: 83,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,426.44 : 149,635.08 = 60,678.80 : x
  2. Step 2: Convert to fraction form
    108,426.44/149,635.08 = 60,678.80/x
  3. Step 3: Cross multiply
    108,426.44x = 149,635.08 × 60,678.80
  4. Step 4: Simplify right side
    108,426.44x = 9,079,677,092.30
  5. Step 5: Solve for x
    x = 9,079,677,092.30/108,426.44
  6. Step 6: Final answer
    x = 83,740.43

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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.