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Finding the Fourth Proportional to 297,921.20, 446,752.20 and 98,164.40

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Solution

The fourth proportional to 297,921.20, 446,752.20 and 98,164.40 is: 147,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,921.20 : 446,752.20 = 98,164.40 : x
  2. Step 2: Convert to fraction form
    297,921.20/446,752.20 = 98,164.40/x
  3. Step 3: Cross multiply
    297,921.20x = 446,752.20 × 98,164.40
  4. Step 4: Simplify right side
    297,921.20x = 43,855,161,661.68
  5. Step 5: Solve for x
    x = 43,855,161,661.68/297,921.20
  6. Step 6: Final answer
    x = 147,203.90

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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.