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Finding the Fourth Proportional to 178,519, 246,682.20 and 130,036.54

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Solution

The fourth proportional to 178,519, 246,682.20 and 130,036.54 is: 179,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,519 : 246,682.20 = 130,036.54 : x
  2. Step 2: Convert to fraction form
    178,519/246,682.20 = 130,036.54/x
  3. Step 3: Cross multiply
    178,519x = 246,682.20 × 130,036.54
  4. Step 4: Simplify right side
    178,519x = 32,077,699,767.59
  5. Step 5: Solve for x
    x = 32,077,699,767.59/178,519
  6. Step 6: Final answer
    x = 179,687.88

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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.