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Finding the Fourth Proportional to 231,633.60, 347,450.40 and 163,982.40

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Solution

The fourth proportional to 231,633.60, 347,450.40 and 163,982.40 is: 245,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,633.60 : 347,450.40 = 163,982.40 : x
  2. Step 2: Convert to fraction form
    231,633.60/347,450.40 = 163,982.40/x
  3. Step 3: Cross multiply
    231,633.60x = 347,450.40 × 163,982.40
  4. Step 4: Simplify right side
    231,633.60x = 56,975,750,472.96
  5. Step 5: Solve for x
    x = 56,975,750,472.96/231,633.60
  6. Step 6: Final answer
    x = 245,973.60

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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.