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Finding the Fourth Proportional to 73,777.65, 110,437.39 and 39,959.67

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Solution

The fourth proportional to 73,777.65, 110,437.39 and 39,959.67 is: 59,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,777.65 : 110,437.39 = 39,959.67 : x
  2. Step 2: Convert to fraction form
    73,777.65/110,437.39 = 39,959.67/x
  3. Step 3: Cross multiply
    73,777.65x = 110,437.39 × 39,959.67
  4. Step 4: Simplify right side
    73,777.65x = 4,413,041,528.49
  5. Step 5: Solve for x
    x = 4,413,041,528.49/73,777.65
  6. Step 6: Final answer
    x = 59,815.43

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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.