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Finding the Fourth Proportional to 108,775.88, 163,163.82 and 38,657.96

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Solution

The fourth proportional to 108,775.88, 163,163.82 and 38,657.96 is: 57,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,775.88 : 163,163.82 = 38,657.96 : x
  2. Step 2: Convert to fraction form
    108,775.88/163,163.82 = 38,657.96/x
  3. Step 3: Cross multiply
    108,775.88x = 163,163.82 × 38,657.96
  4. Step 4: Simplify right side
    108,775.88x = 6,307,579,611.19
  5. Step 5: Solve for x
    x = 6,307,579,611.19/108,775.88
  6. Step 6: Final answer
    x = 57,986.94

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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.