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Finding the Fourth Proportional to 104,012.40, 155,914.44 and 51,460.08

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Solution

The fourth proportional to 104,012.40, 155,914.44 and 51,460.08 is: 77,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,012.40 : 155,914.44 = 51,460.08 : x
  2. Step 2: Convert to fraction form
    104,012.40/155,914.44 = 51,460.08/x
  3. Step 3: Cross multiply
    104,012.40x = 155,914.44 × 51,460.08
  4. Step 4: Simplify right side
    104,012.40x = 8,023,369,555.56
  5. Step 5: Solve for x
    x = 8,023,369,555.56/104,012.40
  6. Step 6: Final answer
    x = 77,138.59

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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.