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Finding the Fourth Proportional to 336,344.52, 504,430.80 and 99,631.80

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Solution

The fourth proportional to 336,344.52, 504,430.80 and 99,631.80 is: 149,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,344.52 : 504,430.80 = 99,631.80 : x
  2. Step 2: Convert to fraction form
    336,344.52/504,430.80 = 99,631.80/x
  3. Step 3: Cross multiply
    336,344.52x = 504,430.80 × 99,631.80
  4. Step 4: Simplify right side
    336,344.52x = 50,257,348,579.44
  5. Step 5: Solve for x
    x = 50,257,348,579.44/336,344.52
  6. Step 6: Final answer
    x = 149,422.23

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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.