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Finding the Fourth Proportional to 73,143.27, 109,698.48 and 43,569.54

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Solution

The fourth proportional to 73,143.27, 109,698.48 and 43,569.54 is: 65,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143.27 : 109,698.48 = 43,569.54 : x
  2. Step 2: Convert to fraction form
    73,143.27/109,698.48 = 43,569.54/x
  3. Step 3: Cross multiply
    73,143.27x = 109,698.48 × 43,569.54
  4. Step 4: Simplify right side
    73,143.27x = 4,779,512,312.30
  5. Step 5: Solve for x
    x = 4,779,512,312.30/73,143.27
  6. Step 6: Final answer
    x = 65,344.53

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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.