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Finding the Fourth Proportional to 72,256.76, 108,244.86 and 53,246.86

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Solution

The fourth proportional to 72,256.76, 108,244.86 and 53,246.86 is: 79,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,256.76 : 108,244.86 = 53,246.86 : x
  2. Step 2: Convert to fraction form
    72,256.76/108,244.86 = 53,246.86/x
  3. Step 3: Cross multiply
    72,256.76x = 108,244.86 × 53,246.86
  4. Step 4: Simplify right side
    72,256.76x = 5,763,698,906.14
  5. Step 5: Solve for x
    x = 5,763,698,906.14/72,256.76
  6. Step 6: Final answer
    x = 79,766.92

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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.