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Finding the Fourth Proportional to 108,164.80, 149,265.84 and 60,418.84

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Solution

The fourth proportional to 108,164.80, 149,265.84 and 60,418.84 is: 83,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,164.80 : 149,265.84 = 60,418.84 : x
  2. Step 2: Convert to fraction form
    108,164.80/149,265.84 = 60,418.84/x
  3. Step 3: Cross multiply
    108,164.80x = 149,265.84 × 60,418.84
  4. Step 4: Simplify right side
    108,164.80x = 9,018,468,904.43
  5. Step 5: Solve for x
    x = 9,018,468,904.43/108,164.80
  6. Step 6: Final answer
    x = 83,377.11

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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.