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Finding the Fourth Proportional to 448,910.48, 673,472.64 and 168,430.16

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Solution

The fourth proportional to 448,910.48, 673,472.64 and 168,430.16 is: 252,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,910.48 : 673,472.64 = 168,430.16 : x
  2. Step 2: Convert to fraction form
    448,910.48/673,472.64 = 168,430.16/x
  3. Step 3: Cross multiply
    448,910.48x = 673,472.64 × 168,430.16
  4. Step 4: Simplify right side
    448,910.48x = 113,433,104,510.82
  5. Step 5: Solve for x
    x = 113,433,104,510.82/448,910.48
  6. Step 6: Final answer
    x = 252,685.36

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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.