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Finding the Fourth Proportional to 297,756.98, 446,384.38 and 129,150.36

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Solution

The fourth proportional to 297,756.98, 446,384.38 and 129,150.36 is: 193,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,756.98 : 446,384.38 = 129,150.36 : x
  2. Step 2: Convert to fraction form
    297,756.98/446,384.38 = 129,150.36/x
  3. Step 3: Cross multiply
    297,756.98x = 446,384.38 × 129,150.36
  4. Step 4: Simplify right side
    297,756.98x = 57,650,703,536.81
  5. Step 5: Solve for x
    x = 57,650,703,536.81/297,756.98
  6. Step 6: Final answer
    x = 193,616.63

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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.