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Finding the Fourth Proportional to 351,071.72, 484,476.78 and 189,926.12

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Solution

The fourth proportional to 351,071.72, 484,476.78 and 189,926.12 is: 262,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,071.72 : 484,476.78 = 189,926.12 : x
  2. Step 2: Convert to fraction form
    351,071.72/484,476.78 = 189,926.12/x
  3. Step 3: Cross multiply
    351,071.72x = 484,476.78 × 189,926.12
  4. Step 4: Simplify right side
    351,071.72x = 92,014,795,055.49
  5. Step 5: Solve for x
    x = 92,014,795,055.49/351,071.72
  6. Step 6: Final answer
    x = 262,096.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.