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Finding the Fourth Proportional to 72,568.60, 108,749.06 and 41,339.32

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Solution

The fourth proportional to 72,568.60, 108,749.06 and 41,339.32 is: 61,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.60 : 108,749.06 = 41,339.32 : x
  2. Step 2: Convert to fraction form
    72,568.60/108,749.06 = 41,339.32/x
  3. Step 3: Cross multiply
    72,568.60x = 108,749.06 × 41,339.32
  4. Step 4: Simplify right side
    72,568.60x = 4,495,612,191.04
  5. Step 5: Solve for x
    x = 4,495,612,191.04/72,568.60
  6. Step 6: Final answer
    x = 61,949.83

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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.