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Finding the Fourth Proportional to 48,974.40, 73,461.60 and 28,180.80

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Solution

The fourth proportional to 48,974.40, 73,461.60 and 28,180.80 is: 42,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,974.40 : 73,461.60 = 28,180.80 : x
  2. Step 2: Convert to fraction form
    48,974.40/73,461.60 = 28,180.80/x
  3. Step 3: Cross multiply
    48,974.40x = 73,461.60 × 28,180.80
  4. Step 4: Simplify right side
    48,974.40x = 2,070,206,657.28
  5. Step 5: Solve for x
    x = 2,070,206,657.28/48,974.40
  6. Step 6: Final answer
    x = 42,271.20

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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.