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Finding the Fourth Proportional to 449,303.72, 673,730.22 and 149,678.96

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Solution

The fourth proportional to 449,303.72, 673,730.22 and 149,678.96 is: 224,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,303.72 : 673,730.22 = 149,678.96 : x
  2. Step 2: Convert to fraction form
    449,303.72/673,730.22 = 149,678.96/x
  3. Step 3: Cross multiply
    449,303.72x = 673,730.22 × 149,678.96
  4. Step 4: Simplify right side
    449,303.72x = 100,843,238,650.17
  5. Step 5: Solve for x
    x = 100,843,238,650.17/449,303.72
  6. Step 6: Final answer
    x = 224,443.36

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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.