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Finding the Fourth Proportional to 78,553.52, 108,403.72 and 44,568.68

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Solution

The fourth proportional to 78,553.52, 108,403.72 and 44,568.68 is: 61,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,553.52 : 108,403.72 = 44,568.68 : x
  2. Step 2: Convert to fraction form
    78,553.52/108,403.72 = 44,568.68/x
  3. Step 3: Cross multiply
    78,553.52x = 108,403.72 × 44,568.68
  4. Step 4: Simplify right side
    78,553.52x = 4,831,410,707.49
  5. Step 5: Solve for x
    x = 4,831,410,707.49/78,553.52
  6. Step 6: Final answer
    x = 61,504.70

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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.