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Finding the Fourth Proportional to 108,494.29, 149,687.52 and 70,283.13

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Solution

The fourth proportional to 108,494.29, 149,687.52 and 70,283.13 is: 96,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,494.29 : 149,687.52 = 70,283.13 : x
  2. Step 2: Convert to fraction form
    108,494.29/149,687.52 = 70,283.13/x
  3. Step 3: Cross multiply
    108,494.29x = 149,687.52 × 70,283.13
  4. Step 4: Simplify right side
    108,494.29x = 10,520,507,427.54
  5. Step 5: Solve for x
    x = 10,520,507,427.54/108,494.29
  6. Step 6: Final answer
    x = 96,968.31

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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.