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Finding the Fourth Proportional to 72,578.55, 108,840.07 and 23,880.52

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Solution

The fourth proportional to 72,578.55, 108,840.07 and 23,880.52 is: 35,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578.55 : 108,840.07 = 23,880.52 : x
  2. Step 2: Convert to fraction form
    72,578.55/108,840.07 = 23,880.52/x
  3. Step 3: Cross multiply
    72,578.55x = 108,840.07 × 23,880.52
  4. Step 4: Simplify right side
    72,578.55x = 2,599,156,887.78
  5. Step 5: Solve for x
    x = 2,599,156,887.78/72,578.55
  6. Step 6: Final answer
    x = 35,811.64

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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.