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Finding the Fourth Proportional to 73,271.70, 109,907.55 and 50,721.30

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Solution

The fourth proportional to 73,271.70, 109,907.55 and 50,721.30 is: 76,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,271.70 : 109,907.55 = 50,721.30 : x
  2. Step 2: Convert to fraction form
    73,271.70/109,907.55 = 50,721.30/x
  3. Step 3: Cross multiply
    73,271.70x = 109,907.55 × 50,721.30
  4. Step 4: Simplify right side
    73,271.70x = 5,574,653,815.82
  5. Step 5: Solve for x
    x = 5,574,653,815.82/73,271.70
  6. Step 6: Final answer
    x = 76,081.95

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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.