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Finding the Fourth Proportional to 137,040.38, 205,467.03 and 73,008.10

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Solution

The fourth proportional to 137,040.38, 205,467.03 and 73,008.10 is: 109,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,040.38 : 205,467.03 = 73,008.10 : x
  2. Step 2: Convert to fraction form
    137,040.38/205,467.03 = 73,008.10/x
  3. Step 3: Cross multiply
    137,040.38x = 205,467.03 × 73,008.10
  4. Step 4: Simplify right side
    137,040.38x = 15,000,756,631.96
  5. Step 5: Solve for x
    x = 15,000,756,631.96/137,040.38
  6. Step 6: Final answer
    x = 109,462.31

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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.