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Finding the Fourth Proportional to 336,394.53, 504,505.81 and 99,681.85

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Solution

The fourth proportional to 336,394.53, 504,505.81 and 99,681.85 is: 149,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,394.53 : 504,505.81 = 99,681.85 : x
  2. Step 2: Convert to fraction form
    336,394.53/504,505.81 = 99,681.85/x
  3. Step 3: Cross multiply
    336,394.53x = 504,505.81 × 99,681.85
  4. Step 4: Simplify right side
    336,394.53x = 50,290,072,476.55
  5. Step 5: Solve for x
    x = 50,290,072,476.55/336,394.53
  6. Step 6: Final answer
    x = 149,497.30

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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.