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Finding the Fourth Proportional to 73,255.76, 109,928.76 and 28,874.96

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Solution

The fourth proportional to 73,255.76, 109,928.76 and 28,874.96 is: 43,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,255.76 : 109,928.76 = 28,874.96 : x
  2. Step 2: Convert to fraction form
    73,255.76/109,928.76 = 28,874.96/x
  3. Step 3: Cross multiply
    73,255.76x = 109,928.76 × 28,874.96
  4. Step 4: Simplify right side
    73,255.76x = 3,174,188,547.85
  5. Step 5: Solve for x
    x = 3,174,188,547.85/73,255.76
  6. Step 6: Final answer
    x = 43,330.22

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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.