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Finding the Fourth Proportional to 148,680.94, 205,086.39 and 88,208.77

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Solution

The fourth proportional to 148,680.94, 205,086.39 and 88,208.77 is: 121,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,680.94 : 205,086.39 = 88,208.77 : x
  2. Step 2: Convert to fraction form
    148,680.94/205,086.39 = 88,208.77/x
  3. Step 3: Cross multiply
    148,680.94x = 205,086.39 × 88,208.77
  4. Step 4: Simplify right side
    148,680.94x = 18,090,418,205.64
  5. Step 5: Solve for x
    x = 18,090,418,205.64/148,680.94
  6. Step 6: Final answer
    x = 121,672.75

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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.