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Finding the Fourth Proportional to 307,721.80, 461,625.90 and 97,337.80

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Solution

The fourth proportional to 307,721.80, 461,625.90 and 97,337.80 is: 146,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,721.80 : 461,625.90 = 97,337.80 : x
  2. Step 2: Convert to fraction form
    307,721.80/461,625.90 = 97,337.80/x
  3. Step 3: Cross multiply
    307,721.80x = 461,625.90 × 97,337.80
  4. Step 4: Simplify right side
    307,721.80x = 44,933,649,529.02
  5. Step 5: Solve for x
    x = 44,933,649,529.02/307,721.80
  6. Step 6: Final answer
    x = 146,020.36

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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.