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Finding the Fourth Proportional to 378,051.09, 567,087.57 and 141,348.57

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Solution

The fourth proportional to 378,051.09, 567,087.57 and 141,348.57 is: 212,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,051.09 : 567,087.57 = 141,348.57 : x
  2. Step 2: Convert to fraction form
    378,051.09/567,087.57 = 141,348.57/x
  3. Step 3: Cross multiply
    378,051.09x = 567,087.57 × 141,348.57
  4. Step 4: Simplify right side
    378,051.09x = 80,157,017,084.27
  5. Step 5: Solve for x
    x = 80,157,017,084.27/378,051.09
  6. Step 6: Final answer
    x = 212,026.94

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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.