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Finding the Fourth Proportional to 231,447.40, 347,204.70 and 98,327.40

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Solution

The fourth proportional to 231,447.40, 347,204.70 and 98,327.40 is: 147,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,447.40 : 347,204.70 = 98,327.40 : x
  2. Step 2: Convert to fraction form
    231,447.40/347,204.70 = 98,327.40/x
  3. Step 3: Cross multiply
    231,447.40x = 347,204.70 × 98,327.40
  4. Step 4: Simplify right side
    231,447.40x = 34,139,735,418.78
  5. Step 5: Solve for x
    x = 34,139,735,418.78/231,447.40
  6. Step 6: Final answer
    x = 147,505.37

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1.5x scale

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.