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Finding the Fourth Proportional to 104,379.80, 144,028.80 and 58,437.06

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Solution

The fourth proportional to 104,379.80, 144,028.80 and 58,437.06 is: 80,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,379.80 : 144,028.80 = 58,437.06 : x
  2. Step 2: Convert to fraction form
    104,379.80/144,028.80 = 58,437.06/x
  3. Step 3: Cross multiply
    104,379.80x = 144,028.80 × 58,437.06
  4. Step 4: Simplify right side
    104,379.80x = 8,416,619,627.33
  5. Step 5: Solve for x
    x = 8,416,619,627.33/104,379.80
  6. Step 6: Final answer
    x = 80,634.57

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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.