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Finding the Fourth Proportional to 448,809.48, 673,139.22 and 149,321.70

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Solution

The fourth proportional to 448,809.48, 673,139.22 and 149,321.70 is: 223,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,809.48 : 673,139.22 = 149,321.70 : x
  2. Step 2: Convert to fraction form
    448,809.48/673,139.22 = 149,321.70/x
  3. Step 3: Cross multiply
    448,809.48x = 673,139.22 × 149,321.70
  4. Step 4: Simplify right side
    448,809.48x = 100,514,292,667.07
  5. Step 5: Solve for x
    x = 100,514,292,667.07/448,809.48
  6. Step 6: Final answer
    x = 223,957.60

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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.