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Finding the Fourth Proportional to 273,950.15, 378,051.71 and 153,091.43

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Solution

The fourth proportional to 273,950.15, 378,051.71 and 153,091.43 is: 211,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,950.15 : 378,051.71 = 153,091.43 : x
  2. Step 2: Convert to fraction form
    273,950.15/378,051.71 = 153,091.43/x
  3. Step 3: Cross multiply
    273,950.15x = 378,051.71 × 153,091.43
  4. Step 4: Simplify right side
    273,950.15x = 57,876,478,761.72
  5. Step 5: Solve for x
    x = 57,876,478,761.72/273,950.15
  6. Step 6: Final answer
    x = 211,266.46

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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.