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Finding the Fourth Proportional to 273,927.29, 378,017.82 and 153,068.88

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Solution

The fourth proportional to 273,927.29, 378,017.82 and 153,068.88 is: 211,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,927.29 : 378,017.82 = 153,068.88 : x
  2. Step 2: Convert to fraction form
    273,927.29/378,017.82 = 153,068.88/x
  3. Step 3: Cross multiply
    273,927.29x = 378,017.82 × 153,068.88
  4. Step 4: Simplify right side
    273,927.29x = 57,862,764,327.44
  5. Step 5: Solve for x
    x = 57,862,764,327.44/273,927.29
  6. Step 6: Final answer
    x = 211,234.02

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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.