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Finding the Fourth Proportional to 451,703.40, 677,123.10 and 167,317.80

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Solution

The fourth proportional to 451,703.40, 677,123.10 and 167,317.80 is: 250,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,703.40 : 677,123.10 = 167,317.80 : x
  2. Step 2: Convert to fraction form
    451,703.40/677,123.10 = 167,317.80/x
  3. Step 3: Cross multiply
    451,703.40x = 677,123.10 × 167,317.80
  4. Step 4: Simplify right side
    451,703.40x = 113,294,747,421.18
  5. Step 5: Solve for x
    x = 113,294,747,421.18/451,703.40
  6. Step 6: Final answer
    x = 250,816.68

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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.