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Finding the Fourth Proportional to 188,618.94, 260,272.32 and 108,041.66

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Solution

The fourth proportional to 188,618.94, 260,272.32 and 108,041.66 is: 149,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,618.94 : 260,272.32 = 108,041.66 : x
  2. Step 2: Convert to fraction form
    188,618.94/260,272.32 = 108,041.66/x
  3. Step 3: Cross multiply
    188,618.94x = 260,272.32 × 108,041.66
  4. Step 4: Simplify right side
    188,618.94x = 28,120,252,774.35
  5. Step 5: Solve for x
    x = 28,120,252,774.35/188,618.94
  6. Step 6: Final answer
    x = 149,084.99

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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.