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Finding the Fourth Proportional to 92,025.76, 137,982.86 and 60,028.76

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Solution

The fourth proportional to 92,025.76, 137,982.86 and 60,028.76 is: 90,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,025.76 : 137,982.86 = 60,028.76 : x
  2. Step 2: Convert to fraction form
    92,025.76/137,982.86 = 60,028.76/x
  3. Step 3: Cross multiply
    92,025.76x = 137,982.86 × 60,028.76
  4. Step 4: Simplify right side
    92,025.76x = 8,282,939,987.05
  5. Step 5: Solve for x
    x = 8,282,939,987.05/92,025.76
  6. Step 6: Final answer
    x = 90,006.75

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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.