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Finding the Fourth Proportional to 73,870.80, 110,806.20 and 44,273.40

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Solution

The fourth proportional to 73,870.80, 110,806.20 and 44,273.40 is: 66,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,870.80 : 110,806.20 = 44,273.40 : x
  2. Step 2: Convert to fraction form
    73,870.80/110,806.20 = 44,273.40/x
  3. Step 3: Cross multiply
    73,870.80x = 110,806.20 × 44,273.40
  4. Step 4: Simplify right side
    73,870.80x = 4,905,767,215.08
  5. Step 5: Solve for x
    x = 4,905,767,215.08/73,870.80
  6. Step 6: Final answer
    x = 66,410.10

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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.