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Finding the Fourth Proportional to 297,777.20, 446,536.20 and 98,020.40

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Solution

The fourth proportional to 297,777.20, 446,536.20 and 98,020.40 is: 146,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,777.20 : 446,536.20 = 98,020.40 : x
  2. Step 2: Convert to fraction form
    297,777.20/446,536.20 = 98,020.40/x
  3. Step 3: Cross multiply
    297,777.20x = 446,536.20 × 98,020.40
  4. Step 4: Simplify right side
    297,777.20x = 43,769,656,938.48
  5. Step 5: Solve for x
    x = 43,769,656,938.48/297,777.20
  6. Step 6: Final answer
    x = 146,987.94

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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.