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Finding the Fourth Proportional to 72,735.52, 109,125.36 and 35,773.60

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Solution

The fourth proportional to 72,735.52, 109,125.36 and 35,773.60 is: 53,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,735.52 : 109,125.36 = 35,773.60 : x
  2. Step 2: Convert to fraction form
    72,735.52/109,125.36 = 35,773.60/x
  3. Step 3: Cross multiply
    72,735.52x = 109,125.36 × 35,773.60
  4. Step 4: Simplify right side
    72,735.52x = 3,903,806,978.50
  5. Step 5: Solve for x
    x = 3,903,806,978.50/72,735.52
  6. Step 6: Final answer
    x = 53,671.26

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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.