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Finding the Fourth Proportional to 149,079.52, 223,634.40 and 49,240

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Solution

The fourth proportional to 149,079.52, 223,634.40 and 49,240 is: 73,864.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,079.52 : 223,634.40 = 49,240 : x
  2. Step 2: Convert to fraction form
    149,079.52/223,634.40 = 49,240/x
  3. Step 3: Cross multiply
    149,079.52x = 223,634.40 × 49,240
  4. Step 4: Simplify right side
    149,079.52x = 11,011,757,856
  5. Step 5: Solve for x
    x = 11,011,757,856/149,079.52
  6. Step 6: Final answer
    x = 73,864.99

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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.