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Finding the Fourth Proportional to 188,751.86, 260,488.80 and 108,184.57

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Solution

The fourth proportional to 188,751.86, 260,488.80 and 108,184.57 is: 149,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,751.86 : 260,488.80 = 108,184.57 : x
  2. Step 2: Convert to fraction form
    188,751.86/260,488.80 = 108,184.57/x
  3. Step 3: Cross multiply
    188,751.86x = 260,488.80 × 108,184.57
  4. Step 4: Simplify right side
    188,751.86x = 28,180,868,817.82
  5. Step 5: Solve for x
    x = 28,180,868,817.82/188,751.86
  6. Step 6: Final answer
    x = 149,301.14

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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.