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Finding the Fourth Proportional to 273,428.90, 410,143.35 and 167,905.70

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Solution

The fourth proportional to 273,428.90, 410,143.35 and 167,905.70 is: 251,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,428.90 : 410,143.35 = 167,905.70 : x
  2. Step 2: Convert to fraction form
    273,428.90/410,143.35 = 167,905.70/x
  3. Step 3: Cross multiply
    273,428.90x = 410,143.35 × 167,905.70
  4. Step 4: Simplify right side
    273,428.90x = 68,865,406,282.10
  5. Step 5: Solve for x
    x = 68,865,406,282.10/273,428.90
  6. Step 6: Final answer
    x = 251,858.55

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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.