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Finding the Fourth Proportional to 108,656.88, 149,947.03 and 63,366.27

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Solution

The fourth proportional to 108,656.88, 149,947.03 and 63,366.27 is: 87,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,656.88 : 149,947.03 = 63,366.27 : x
  2. Step 2: Convert to fraction form
    108,656.88/149,947.03 = 63,366.27/x
  3. Step 3: Cross multiply
    108,656.88x = 149,947.03 × 63,366.27
  4. Step 4: Simplify right side
    108,656.88x = 9,501,583,988.68
  5. Step 5: Solve for x
    x = 9,501,583,988.68/108,656.88
  6. Step 6: Final answer
    x = 87,445.76

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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.