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Finding the Fourth Proportional to 75,766.80, 104,552.76 and 43,930.32

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Solution

The fourth proportional to 75,766.80, 104,552.76 and 43,930.32 is: 60,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,766.80 : 104,552.76 = 43,930.32 : x
  2. Step 2: Convert to fraction form
    75,766.80/104,552.76 = 43,930.32/x
  3. Step 3: Cross multiply
    75,766.80x = 104,552.76 × 43,930.32
  4. Step 4: Simplify right side
    75,766.80x = 4,593,036,203.68
  5. Step 5: Solve for x
    x = 4,593,036,203.68/75,766.80
  6. Step 6: Final answer
    x = 60,620.70

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1.5x scale

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.