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Finding the Fourth Proportional to 108,496.98, 149,625.91 and 74,445.39

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Solution

The fourth proportional to 108,496.98, 149,625.91 and 74,445.39 is: 102,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,496.98 : 149,625.91 = 74,445.39 : x
  2. Step 2: Convert to fraction form
    108,496.98/149,625.91 = 74,445.39/x
  3. Step 3: Cross multiply
    108,496.98x = 149,625.91 × 74,445.39
  4. Step 4: Simplify right side
    108,496.98x = 11,138,959,224.05
  5. Step 5: Solve for x
    x = 11,138,959,224.05/108,496.98
  6. Step 6: Final answer
    x = 102,666.08

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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.