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Finding the Fourth Proportional to 217,314.40, 326,846.40 and 194,569.60

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Solution

The fourth proportional to 217,314.40, 326,846.40 and 194,569.60 is: 292,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,314.40 : 326,846.40 = 194,569.60 : x
  2. Step 2: Convert to fraction form
    217,314.40/326,846.40 = 194,569.60/x
  3. Step 3: Cross multiply
    217,314.40x = 326,846.40 × 194,569.60
  4. Step 4: Simplify right side
    217,314.40x = 63,594,373,309.44
  5. Step 5: Solve for x
    x = 63,594,373,309.44/217,314.40
  6. Step 6: Final answer
    x = 292,637.64

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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.