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Finding the Fourth Proportional to 543,274.03, 814,412.12 and 188,039.62

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Solution

The fourth proportional to 543,274.03, 814,412.12 and 188,039.62 is: 281,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,274.03 : 814,412.12 = 188,039.62 : x
  2. Step 2: Convert to fraction form
    543,274.03/814,412.12 = 188,039.62/x
  3. Step 3: Cross multiply
    543,274.03x = 814,412.12 × 188,039.62
  4. Step 4: Simplify right side
    543,274.03x = 153,141,745,568.19
  5. Step 5: Solve for x
    x = 153,141,745,568.19/543,274.03
  6. Step 6: Final answer
    x = 281,886.74

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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.