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Finding the Fourth Proportional to 88,991.52, 122,799.96 and 53,174.40

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Solution

The fourth proportional to 88,991.52, 122,799.96 and 53,174.40 is: 73,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,991.52 : 122,799.96 = 53,174.40 : x
  2. Step 2: Convert to fraction form
    88,991.52/122,799.96 = 53,174.40/x
  3. Step 3: Cross multiply
    88,991.52x = 122,799.96 × 53,174.40
  4. Step 4: Simplify right side
    88,991.52x = 6,529,814,193.02
  5. Step 5: Solve for x
    x = 6,529,814,193.02/88,991.52
  6. Step 6: Final answer
    x = 73,375.69

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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.