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Finding the Fourth Proportional to 307,514.70, 461,358.45 and 149,748.30

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Solution

The fourth proportional to 307,514.70, 461,358.45 and 149,748.30 is: 224,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,514.70 : 461,358.45 = 149,748.30 : x
  2. Step 2: Convert to fraction form
    307,514.70/461,358.45 = 149,748.30/x
  3. Step 3: Cross multiply
    307,514.70x = 461,358.45 × 149,748.30
  4. Step 4: Simplify right side
    307,514.70x = 69,087,643,578.14
  5. Step 5: Solve for x
    x = 69,087,643,578.14/307,514.70
  6. Step 6: Final answer
    x = 224,664.52

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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.