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Finding the Fourth Proportional to 188,958.85, 260,763.19 and 104,075.91

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Solution

The fourth proportional to 188,958.85, 260,763.19 and 104,075.91 is: 143,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,958.85 : 260,763.19 = 104,075.91 : x
  2. Step 2: Convert to fraction form
    188,958.85/260,763.19 = 104,075.91/x
  3. Step 3: Cross multiply
    188,958.85x = 260,763.19 × 104,075.91
  4. Step 4: Simplify right side
    188,958.85x = 27,139,166,293.75
  5. Step 5: Solve for x
    x = 27,139,166,293.75/188,958.85
  6. Step 6: Final answer
    x = 143,624.74

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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.