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Finding the Fourth Proportional to 108,611.51, 149,877.68 and 63,296.87

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Solution

The fourth proportional to 108,611.51, 149,877.68 and 63,296.87 is: 87,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,611.51 : 149,877.68 = 63,296.87 : x
  2. Step 2: Convert to fraction form
    108,611.51/149,877.68 = 63,296.87/x
  3. Step 3: Cross multiply
    108,611.51x = 149,877.68 × 63,296.87
  4. Step 4: Simplify right side
    108,611.51x = 9,486,786,960.99
  5. Step 5: Solve for x
    x = 9,486,786,960.99/108,611.51
  6. Step 6: Final answer
    x = 87,346.06

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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.