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Finding the Fourth Proportional to 108,175.47, 149,167.49 and 74,233.46

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Solution

The fourth proportional to 108,175.47, 149,167.49 and 74,233.46 is: 102,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,175.47 : 149,167.49 = 74,233.46 : x
  2. Step 2: Convert to fraction form
    108,175.47/149,167.49 = 74,233.46/x
  3. Step 3: Cross multiply
    108,175.47x = 149,167.49 × 74,233.46
  4. Step 4: Simplify right side
    108,175.47x = 11,073,217,785.21
  5. Step 5: Solve for x
    x = 11,073,217,785.21/108,175.47
  6. Step 6: Final answer
    x = 102,363.48

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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.