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Finding the Fourth Proportional to 60,179.41, 90,148.48 and 28,619.97

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Solution

The fourth proportional to 60,179.41, 90,148.48 and 28,619.97 is: 42,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,179.41 : 90,148.48 = 28,619.97 : x
  2. Step 2: Convert to fraction form
    60,179.41/90,148.48 = 28,619.97/x
  3. Step 3: Cross multiply
    60,179.41x = 90,148.48 × 28,619.97
  4. Step 4: Simplify right side
    60,179.41x = 2,580,046,884.59
  5. Step 5: Solve for x
    x = 2,580,046,884.59/60,179.41
  6. Step 6: Final answer
    x = 42,872.59

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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.