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Finding the Fourth Proportional to 108,954.88, 163,570.56 and 92,642.56

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Solution

The fourth proportional to 108,954.88, 163,570.56 and 92,642.56 is: 139,081.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,954.88 : 163,570.56 = 92,642.56 : x
  2. Step 2: Convert to fraction form
    108,954.88/163,570.56 = 92,642.56/x
  3. Step 3: Cross multiply
    108,954.88x = 163,570.56 × 92,642.56
  4. Step 4: Simplify right side
    108,954.88x = 15,153,595,419.03
  5. Step 5: Solve for x
    x = 15,153,595,419.03/108,954.88
  6. Step 6: Final answer
    x = 139,081.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.