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Finding the Fourth Proportional to 196,809.60, 295,142.40 and 63,724.80

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Solution

The fourth proportional to 196,809.60, 295,142.40 and 63,724.80 is: 95,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,809.60 : 295,142.40 = 63,724.80 : x
  2. Step 2: Convert to fraction form
    196,809.60/295,142.40 = 63,724.80/x
  3. Step 3: Cross multiply
    196,809.60x = 295,142.40 × 63,724.80
  4. Step 4: Simplify right side
    196,809.60x = 18,807,890,411.52
  5. Step 5: Solve for x
    x = 18,807,890,411.52/196,809.60
  6. Step 6: Final answer
    x = 95,563.89

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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.