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Finding the Fourth Proportional to 73,815.20, 110,701.20 and 26,424.80

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Solution

The fourth proportional to 73,815.20, 110,701.20 and 26,424.80 is: 39,629.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.20 : 110,701.20 = 26,424.80 : x
  2. Step 2: Convert to fraction form
    73,815.20/110,701.20 = 26,424.80/x
  3. Step 3: Cross multiply
    73,815.20x = 110,701.20 × 26,424.80
  4. Step 4: Simplify right side
    73,815.20x = 2,925,257,069.76
  5. Step 5: Solve for x
    x = 2,925,257,069.76/73,815.20
  6. Step 6: Final answer
    x = 39,629.47

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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.