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Finding the Fourth Proportional to 243,839.40, 365,046.30 and 173,855.40

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Solution

The fourth proportional to 243,839.40, 365,046.30 and 173,855.40 is: 260,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,839.40 : 365,046.30 = 173,855.40 : x
  2. Step 2: Convert to fraction form
    243,839.40/365,046.30 = 173,855.40/x
  3. Step 3: Cross multiply
    243,839.40x = 365,046.30 × 173,855.40
  4. Step 4: Simplify right side
    243,839.40x = 63,465,270,505.02
  5. Step 5: Solve for x
    x = 63,465,270,505.02/243,839.40
  6. Step 6: Final answer
    x = 260,274.88

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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.