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Finding the Fourth Proportional to 60,149.84, 90,255.86 and 43,645.94

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Solution

The fourth proportional to 60,149.84, 90,255.86 and 43,645.94 is: 65,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,149.84 : 90,255.86 = 43,645.94 : x
  2. Step 2: Convert to fraction form
    60,149.84/90,255.86 = 43,645.94/x
  3. Step 3: Cross multiply
    60,149.84x = 90,255.86 × 43,645.94
  4. Step 4: Simplify right side
    60,149.84x = 3,939,301,508.04
  5. Step 5: Solve for x
    x = 3,939,301,508.04/60,149.84
  6. Step 6: Final answer
    x = 65,491.48

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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.