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Finding the Fourth Proportional to 188,751.82, 260,483.70 and 108,194.59

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Solution

The fourth proportional to 188,751.82, 260,483.70 and 108,194.59 is: 149,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,751.82 : 260,483.70 = 108,194.59 : x
  2. Step 2: Convert to fraction form
    188,751.82/260,483.70 = 108,194.59/x
  3. Step 3: Cross multiply
    188,751.82x = 260,483.70 × 108,194.59
  4. Step 4: Simplify right side
    188,751.82x = 28,182,925,780.70
  5. Step 5: Solve for x
    x = 28,182,925,780.70/188,751.82
  6. Step 6: Final answer
    x = 149,312.07

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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.