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Finding the Fourth Proportional to 73,372.86, 109,951.38 and 43,356.24

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Solution

The fourth proportional to 73,372.86, 109,951.38 and 43,356.24 is: 64,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,372.86 : 109,951.38 = 43,356.24 : x
  2. Step 2: Convert to fraction form
    73,372.86/109,951.38 = 43,356.24/x
  3. Step 3: Cross multiply
    73,372.86x = 109,951.38 × 43,356.24
  4. Step 4: Simplify right side
    73,372.86x = 4,767,078,419.61
  5. Step 5: Solve for x
    x = 4,767,078,419.61/73,372.86
  6. Step 6: Final answer
    x = 64,970.60

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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.