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Finding the Fourth Proportional to 60,219.73, 90,261.94 and 28,603.92

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Solution

The fourth proportional to 60,219.73, 90,261.94 and 28,603.92 is: 42,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,219.73 : 90,261.94 = 28,603.92 : x
  2. Step 2: Convert to fraction form
    60,219.73/90,261.94 = 28,603.92/x
  3. Step 3: Cross multiply
    60,219.73x = 90,261.94 × 28,603.92
  4. Step 4: Simplify right side
    60,219.73x = 2,581,845,310.80
  5. Step 5: Solve for x
    x = 2,581,845,310.80/60,219.73
  6. Step 6: Final answer
    x = 42,873.74

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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.