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Finding the Fourth Proportional to 194,615.60, 291,923.40 and 163,122.80

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Solution

The fourth proportional to 194,615.60, 291,923.40 and 163,122.80 is: 244,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,615.60 : 291,923.40 = 163,122.80 : x
  2. Step 2: Convert to fraction form
    194,615.60/291,923.40 = 163,122.80/x
  3. Step 3: Cross multiply
    194,615.60x = 291,923.40 × 163,122.80
  4. Step 4: Simplify right side
    194,615.60x = 47,619,362,393.52
  5. Step 5: Solve for x
    x = 47,619,362,393.52/194,615.60
  6. Step 6: Final answer
    x = 244,684.20

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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.