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Finding the Fourth Proportional to 196,979.20, 295,468.80 and 118,052.80

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Solution

The fourth proportional to 196,979.20, 295,468.80 and 118,052.80 is: 177,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,979.20 : 295,468.80 = 118,052.80 : x
  2. Step 2: Convert to fraction form
    196,979.20/295,468.80 = 118,052.80/x
  3. Step 3: Cross multiply
    196,979.20x = 295,468.80 × 118,052.80
  4. Step 4: Simplify right side
    196,979.20x = 34,880,919,152.64
  5. Step 5: Solve for x
    x = 34,880,919,152.64/196,979.20
  6. Step 6: Final answer
    x = 177,079.20

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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.